Dr
Javad Rahighi
(Iranian Light Source Facility)
25/11/2015, 09:00
Dr
دلسیم هاشمی حسین
25/11/2015, 09:30
Dr
Nicolae Verga
25/11/2015, 10:00
Dr
Javad Rahighi
(Iranian Light Source Facility)
25/11/2015, 10:50
Mr
Morteza Jafarzadeh
(Iranain Light Source Facility)
25/11/2015, 11:20
Mr
Seyed Rahman Eghbali
(ILSF, IPM & Imam Khomeini International University)
25/11/2015, 11:40
Get away from the oil-based economy and move to the resistance economy, is the new approach that is capable to provide the development of country in all-round of fields. Taking advantage of the knowledge-based economy is the most strategic tool in this direction. An economy in which the economic efficiency is provide by knowledge interplay on the knowledge, grater than the effect of knowledge...
Mr
javad jazini dorche
(laser & plasma institude ,shahid beheshti university)
25/11/2015, 13:30
Production of short electron bunch has become one of the most important requirement to study the dynamics at the atomic level. Such a short electron bunch can also be used to produce intense coherent radiation in the far infrared free electron laser. one way of the production of short electron bunches at low energy is the combination of an rf gun with a thermionic cathode with a magnetic...
Dr
Hossein Afarideh
(Amirkabir university of technology)
25/11/2015, 13:50
Dr
Behnam Azadegan
(Hakim Sabzevari University)
26/11/2015, 09:00
The measurements of channeling radiation (CR) at the radiation source ELBE of the Forschungszentrum Dresden-Rossendorf have been performed. The aim of performing these experiments was attempted for optimization of radiation yield and spectral line width in order to application CR in radiobiological researches. Diamond crystals can be used in relatively high electron currents due to the high...
Mr
Esmaeil Ahmadi
(Iranian Light Source Facility)
26/11/2015, 09:20
Electron storage rings are extensively used for high luminosity colliders, damping rings in high-energy physics and synchrotron light sources. To further increase the luminosity at the colliders or brightness of a synchrotron light sources, the beam emittance is being continually pushed downward. In this paper, we investigate the lattice design for the storage ring of Iranian Light Source...
Dr
Fazel Jahangiri
(Laser and Plasma Research Institute, Shahid Beheshti university)
26/11/2015, 09:40
In this paper, electron acceleration in the field of laser pulse is investigated. To limit the interaction region which is required for acceleration, a new scheme is presented for injection of electron on temporal peak of the laser pulse. Electron is generated from a synchronized plasma source and is steered by magnetic field to the direction of laser pulse. Energy gain of electron is studied...
Mr
ali mohammad poursaleh
(aeoi)
26/11/2015, 10:40
The different forms of loop coupler for coupling the input RF power to the acceleration cavity of electron accelerator at VHF frequency band was investigated. In this study, three forms of loop coupler considered and then by Comparison of simulation results using the CST software the best geometry is choice. Good coupling coefficient, position of coupler in the acceleration cavity and...
Dr
OmidReza Kakuee
(Nuclear Science & Technology Research Institute)
26/11/2015, 11:00
Dr
Masoomeh Yarmohammadi Satri
(School of Particle and accelerators, IPM, Tehran, Iran)
26/11/2015, 11:20
Linac4 is the near future 160 MeV H- linear accelerator of the CERN presently under construction. It will replace the present 50 MeV proton Linac2 as injector of the proton accelerator complex and part of a project to upgrade the LHC injector. The Linac4 front-end, composed of a 45 keV ion source, a Low Energy Beam Transport (LEBT), a 352.2 MHz Radio Frequency Quadrupole (RFQ) which...
Mr
Ali Moradi
(Behyaar Sanaat Sepahan co.), Mr
Yasser Fakhari
(Behyaar Sanaat Sepahan co.)
26/11/2015, 11:40
To allow patients to be treated with beams from different directions, there is a need to be able to rotate the treatment head through 360º about the patient. The accelerator waveguide, microwave devices and the head assembly must be mounted on a gantry that enables the beam to be rotated around the patient. The design and manufacturing procedure of the mechanical system of the Behyaar medical...
Mr
Hossein Farhang
(Electron Beam Applications Development Co.), Mr
Mohammad Farahmandzad
(Electron Beam Applications Development Co.)
26/11/2015, 15:00
Considering the challenges in fabrication and electromagnetic characterization of LINAC tube, first we have studied four major parameters including cavity material, dimension agreement, surface roughness and concentricity of cavities. Then considering the mentioned parameters and electromagnetic properties, cavities are fabricated. Afterwards, techniques and corresponding results for resonant...
Mr
majid yousefzade
(electron beam application and developments co.)
26/11/2015, 15:20
The most popular joining process in assembling metal parts for vacuum sealing is brazing, which is applicable to linear accelerators. However, in this application, overflow of molten filler alloy on the inner surface of cavity, will cause frequency shift of cavities. So, replacing the brazing process with diffusion bonding process, leads to an increase in cost, especially because of machining...
Mr
isaac shiri
(dept.of Medical Physics, School of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran)
26/11/2015, 15:40
Purpose :
Superheated liquid has recently been used extensively as a radiation detector, and its superiority as a neutron detector compared to other conventional neutron detector has already been established. The present work relates to a sensitive neutron dosimeter, a device for monitoring neutron dose in some accelerator, radiotherapy and reactor sites.
Material and method:
The...
Mr
Saeid Pirani
(Iranian Light Source Facility (ILSF), Institute for Research in Fundamental Sciences (IPM), Tehran, Iran)
چشمهی نور ایران
Poster
Iranian Light Source Facility (ILSF) RF system was conceptually designed based on ILSF requirements for a 3GeV storage ring and 400 mA beam current at 500 MHz RF frequency. The development of HOM damped cavity with simpler structure at 100MHz and advantages of reducing frequency made 100MHz RF system as the proper choice for ILSF. This paper provides details of RF frequency change and its...
Mr
Babak Kamkari
(ILSF,IPM)
چشمهی نور ایران
Poster
The stability of the electron beam orbit had been observed to be sensitive to the utility conditions. The stability of air temperature in the storage ring tunnel is one of the most critical factors. Computational fluid dynamics (CFD) is applied to simulate the flow field and the spatial temperature distribution in the storage ring tunnel. The k-ε turbulence model is applied to simulate the...
Mr
Behzad yadollahzadeh
(Physics & accelerators research school,NSTRI, PO Box 14395-836,Tehran,Iran)
شتابگر واندوگراف
Poster
Beam current measurement in quantitative ion beam analysis is a major problem. Especially in external analysis of cultural heritage samples, this measurement is of great importance. In this work, efforts are made to determine the number of ions hitting the sample in external PIXE analysis. This research is carried out using the 3 MV accelerator of Nuclear Science and Technology Research...
Mr
alimohammad poursaleh
(aeoi)
کاربردها در صنعت و علوم
Poster
In this paper the principles of division of industrial electron accelerators and theire applications has been studied.In the non-linear electron accelerator the electron beam path is not direct unlike the linear accelerators. Non linear accelerator designed primarily to be used to the maximum of the electric field in the cavity created by repeating passing electron beam in acceration cavity to...
Mr
Mohsen Mousavinia
(Department of Energy Engineering & Physics, Amirkabir University of Technology, Tehran, 15875-4413, Iran)
شتابگر سیکلوترون
Poster
One of the key features in cyclotron designing and manufacturing is RF system.Cavity as it plays an role in RF system.In this study RF cavity of 18 MeV cyclotron has been designed and simulated bys CST MWS.Considering the resonance frequency 64.3 MHz from magnet analysis ,the scattering parameters has met its optimume value by changing the dimentions of cavity including stem long , radius...
Mr
Gholamabbas Tahmasbi Birgani
(North Drilling Company)
کاربردها در صنعت و علوم
Poster
Including the use of radioactive neutron accelerator in operational processes "drilling exploration and utilization of vessels' oil and gas extraction speed data from the instruments of industrial automation control networks an important role in the speed of decision making and operational employees in the management of eruption the balance of the reservoirs are the optimal producation ...
Prof.
Hossein Afarideh
(Amirkabir university of technology), Mr
mohammad saleh sharifi asadi
(iran)
شتابگر سیکلوترون
Poster
Low-level radio frequency circuit cyclotron consisted of 3 separate sections, signal generator based on direct digital synthesis technology, the automatic resonant frequency Tuner and protection circuit. Cyclotron RF frequency loaded to signal generator by central controller then signal generating was done accordance with the startup process. Due to the temperature variation by the beam...
Mr
Behzad yadollahzadeh
(Physics & accelerators research school,NSTRI, PO Box 14395-836,Tehran,Iran)
دیگر مقالات
Poster
Electron curtain accelerator is a type of low-energy electron accelerator which plays an important role in many different industries such as printing, curing, coating and packing to promote product quality while reducing volatile organic compounds to protect global environment. Electron source is one of the main components of this type of accelerators. Multi-filament cathodes and grid...
Mr
Mohammad mahdi Afkhami Karaei
(Amir kabir university of technology)
شتابگر سیکلوترون
Poster
In recent decades positron emission tomography plays as an important role for tumor diagnosis between the doctors. Floure-18,Carbon-11, Nitrogen-13, Oksijen-13 ,Radioisotopes are used in PET and according to high half-life of Floure-18 compared to other radioisotopes this radioisotope are used more. At Amirkabir University of technology developed a AVF cyclotron. It consist of four sector...
Mr
Mahmoud Reza Akbari
(Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran)
کاربردها در پزشکی
Poster
Nowadays, proton therapy has been notably considered for treatment of localized tumors adjacent to critical structures. The Bragg Peak (BP) depth in human tissue directly depends on the initial energy of the proton beam. Therefore, by selecting proper proton beam energies, the depth of the BP can be adjusted according to the depth and extent of the tumor region. Because of the major advantage...
Mr
Rahman Akbari kishi
(Azad University), Dr
Zafar riazi
(AEOI)
لیزر و پلاسما
Poster
In this paper, equations of charge continuity, momentum and energy conservation for three species electron, ion and neutral gas atoms are coupled with electromagnetic fields equations inside a cylindrical radio-frequency inductive ion source and simultaneously solved by finite difference method. By discharging the argon gas, the plasma density and electron temperature have been calculated as...
Dr
Behnam Azadegan
(Hakim Sabzevari University), Mr
Seyed Ali Mahdipour
(Hakim Sabzevari University)
کاربردها در صنعت و علوم
Poster
In the conventional method of positron production, two crystalline
and non-crystalline targets are used. Bremsstrahlung and channeling
radiation spectrum by relativistic electrons channeled along the
(110) crystallographic plane of a W crystal lead to the subsequent
conversion of radiation into e+e− pairs in an amorphous tungsten
target. In this article, we...
Ms
fatemeh jafari razi
(Department of Nuclear Engineering, Tehran Science and Research branch, Islamic Azad University, Tehran, Iran.)
کاربردها در پزشکی
Poster
Microbeam radiation therapy using high fluence x-ray is an innovative experimental method that can be used for radioresistant tumor such as glioma, especially in pediatric cancer. In this work, 3D dose distribution in water and head equivalent phantoms is obtained by simulation in the Geant4 Monte Carlo code. Large numbers of simulation runs are performed with various microbeam configurations....
Mr
Alireza Abbasnia
(phd student)
کاربردها در صنعت و علوم
Poster
In this work, we have been considered accelerator which abilities to produce electrons with energies in the range of 1 GeV, to achieve the radiation spectra in Si(110) crystals in different thickness. For this purpose, by calculated the electrons dechanneling length in crystal and with solution Fokker-Plank equation, we can achieved a solution for electromagnetic radiation due to electrons in...
Mr
Davoud Agha Aligol
(Physics and Accelerators Research School, Nuclear Science and Technology Research Institute, Tehran, Iran)
شتابگر واندوگراف
Poster
In inertial confinement fusion (ICF) the sphericity and uniformity of the target capsule is vary important, as Rayleigh-Taylor instabilities can influence the performance of these targets. The targets should highly symmetrical and homogeneous and should have highly uniform surface. In this work a Scanning Proton Microscope was used to Characterize ICF targets in terms of the distribution of...
Mr
Esmaeil Ahmadi
(Iranian Light Source Facility)
چشمهی نور ایران
Poster
Due to very small emittance of ILSF storage ring, the beam stability will be strongly sensitive to the magnet movement particularly quadrupoles. Ground wave vibration is a dynamic phenomenon that dilutes the quality of photon beam stability via the degrading closed orbit stability. In order to investigate its effect, the response of closed orbit to ground vibration has been calculated. We...
Ms
Azam Gholampour Azhir
(a member of beamline group of Iranian Light Source Facility), Ms
Somayeh Amiri
(a member of beamline group)
چشمهی نور ایران
Poster
In this paper we have discussed about the role of two emittance values suggested for ILSF lattice design i.e. 3.278 and 0.476 nm.rad on the different issues of the sources (bending magnet, insertion devices) and beamline design. It has been resulted from the trend of the synchrotrons in the recent decades that the users are looking for higher brightness of photon sources that is obtained from...
Mr
Saeed Haghtalab
(Shahid Beheshti University-SBU)
شتابگر خطی
Poster
The linear electron accelerator of institue for research and fundamental sciences (IPM), is a traveling wave accelerator consisting of 62 components in five major sections: control and safety, beam injection, radio ferequency production and transmision, acceleration tube and target. So far, the various components of this accelerator have been designed and constructed. This article is the...
Mr
shiri isaac
(Iran University of Medical Sciences)
کاربردها در پزشکی
Poster
Unfortunately, lack of continuous dosimetry and monitoring and control of radioactive materials and ionizing air in nuclear medicine, radiotherapy and cyclotron departments lead to radiological accidents in these departments which we don’t know how and when they occur. Lack of awareness about radioactive material and ionizing air in these departments lead to increase exposure of personnel and...
Mr
gholamreza bazrafshan
(Iranian Light Source Facility(ILSF))
چشمهی نور ایران
Poster
Design and construction process of special kind of sputter ion pump is described briefly in this paper. In order to investigate the optimization of effective parameters in choosing and designing ILSF ion pumps, this pump has been designed and manufactured. By optimizing some parameters such as dimension and shape of penning cells, anode voltage, magnetic field and internal structure of pump,...
Mr
Mehdi Shafiee
(Iranian Light Source Facility)
چشمهی نور ایران
Poster
A configurable electronic system has been developed for button BPMs readout in the storage ring of Iranian Light Source Facility (ILSF). This system calculates the beam position through the output voltage of BPMs. Output signals of BPMs pass through a 500 MHz and 50ohm front-end for noise filtering and also gain control purposes. Then the signal is digitized based on under sampling method by a...
Mr
Ali Hosseini
(Electron Beam Applications Development Co.)
شتابگر خطی
Oral
Reliability of an accelerator is ensured by precise operation of all components, including RF power injection system. Shifting in operating frequency of accelerating tube due to temperature change is inevitable. In addition, high quality factor cavities reflect the injected power if the frequency is deviated from their resonance frequency. So it is essential to modify the driving frequency...
Mr
Mahyar Shirshekan
(sbu)
شتابگر خطی
Poster
For accurate measurement of the constructed accelerating tube components for e-Linac of IPM, a Network Analyzer has been used and all the data have been automatically stored by GPI interface card. In order to do so, an appropriate program has been designed and implemented by Labview software. The most important measurement for the accelerating tube is performed by applying slater perturbation...
Mr
Yasser Fakhari
(Behyaar Sanaat Sepahan)
کاربردها در پزشکی
Poster
The high voltage pulse modulator for the Behyaar medical LINAC was designed and manufactured. In this Modulator the 3 phase ac input is transformed and rectified and filtered to about 5 kV dc. The Pulse Forming Network (PFN) is charged by this voltage within 4 milli-seconds and it will be discharged with the aid of a HV Thyratron switch and a HV pulse transformer to the magnetron (35 kV) and...
Yasser Fakhari
(Behyaar Sanaat Sepahan co.)
کاربردها در پزشکی
Poster
The design and prototyping process of the dose measurement and control system of Behyaar medical LINAC was completed. It consists of two dosimetry channels. Because of patient safety reasons each channel works completely independent and the radiation will be terminated immediately after any difference between output of two channels were sensed. Each channel has an ionization chamber and...
Ms
Nastaran Rahimpour
(Department of Energy Engineering and physics , Amirkabir University of Technology, Tehran, Iran)
شتابگر سیکلوترون
Poster
Design and simulation of 18MeV cyclotron magnet for medical applications has presented in this paper. In magnet design all other subsystems which are related with magnet should be considered. Designed magnet with 4 hills and valleys has AVF structure. The TOSCA (OPERA-3D) code has used for simulation and analysis of this magnet. Designing process summarize in two steps: At first all initial...
Mr
Morteza Esmaeili Nojehdehi
(Nuclear Science and Technology Research Institute, Physics and Accelerator research School)
دیگر مقالات
Poster
In the article the 300 kV multi-filament electron curtain accelerator with broad beam has been designed and simulated. The low energy accelerator was designed to produce almost 100 mA current with the power of 30 kW and the width of 500mm for the usage of industrial and environmental issues. The physical and mechanical parameters of the accelerator as well as extracted current with regard to...
Dr
Seyed Pezhman Shirmardi
(Nuclear science and Technology Research Institute (NSTRI)), Mrs
الهام گنجعلیخان حاکمی
(مجتمع پژوهشی ایران مرکزی), Mr
سید احمد حسینی
(مجتمع پژوهشی ایران مرکزی)
کاربردها در پزشکی
Poster
In this study, the production of X-ray due to incidence 10 MeV electron beam from an industrial Rhodotron accelerator with a portable tungsten and tantalum target were investigated using the MCNP-4C and BEAMnrc codes and results compared with available data. An aluminum layer fixed after target that eliminating output electron. X-ray dose rate before and after of aluminum layer calculated by...
Mr
Seyed Mahmood Mohati
(Nuclear Sciences and Technology Research Institute)
دیگر مقالات
Poster
In this paper, the ion beam extracted from a Kaufman gas ion source which is designed for use in an ion implantation accelerator is simulated by CST (Computer Simulation Technology). The output beam has circular cross section of 10cm diameter, uniform distribution and maximum energy is 150keV. The Gas which intended to implant is ionized by collisions with electrons emitted from the hot...
Mr
Ali Biganeh
(nuclear science and technology research institute)
شتابگر سیکلوترون
Poster
Numerical simulation for design and optimization of a magnet for a 100 MeV H- separated sector cyclotron is presented. After determination of basic specification of the magnet, 2-D simulation by POISSON code is carried out in order to speed up the simulation process. This 2-D model is an approximation to 3-D model that is simulated in complete details by TOSCA software. The results shows that...
Ms
حمیده حسنی
(دانشگاه شهید بهشتی)
لیزر و پلاسما
Poster
One of the most important applications of the linear accelerators is free-electron laser. Owing to this fact that the far infrared range has interesting applications, in the present work this range has been considered. In order to obtain laser output wavelength in the range of 10-100 μm (i.e., far infrared), system requires a high quality beam with energy range of 5-15 Mev. For this goal, a...
Ms
Nooshin Jenabi
(Iranian Light Source Facility)
چشمهی نور ایران
Poster
**Diagnostic systems utilize to measure critical quantities of beam such as profile, intensity, position emittance and energy. In this paper, linac beam profile monitor of Iranian Light Source Facility has been designed and simulated and the effect of beam divergence on profile shape has been investigated. All the simulations have been done for synchrotron radiation in beamlines as well. The...
Ms
mahsa aghili
(isfahan university of technology physics department)
دیگر مقالات
Poster
An appropriate neutron source for Boron Neutron Capture Therapy (BNCT) should provide epithermal neutron flux in order of 109 n/s.cm2. Electron linear accelerator with energy 510 MeV and current 1.6×1012 electron per second, considered for production of Bremsstrahlung radiation to produce photoneutron. For this purpose thin and thick targets are analyzed. In order to analyze the possibility of...
Dr
Ehsan Salimi
(IPM)
چشمهی نور ایران
Poster
Synchrotron light combines extremely high intensity, small apparent source size, high collimation, tunability, and a continuous energy spectrum (from the far infrared region up to hard X-rays), making this a uniquely useful tool for biomedical imaging and therapy. A dedicated beamline for biomedical researches could be a great tool for various synchrotron imaging methods such as K-edge...
Dr
Ehsan Salimi
(IPM)
چشمهی نور ایران
Poster
Gas bremsstrahlung is generated in high energy electron storage rings through interaction of the electron beam with the residual gas molecules in vacuum chamber. In this paper, Monte Carlo calculation has been performed to evaluate radiation hazard due to gas bremsstrahlung in the Iranian Light Source Facility (ILSF) insertion devices. Shutter/stopper dimensions is determined and dose rate...
Mr
ali mohammad poursaleh
(aeoi)
شتابگر رودوترون یزد
Poster
The resonant structures are the one of the proposed methods can be combined the RF power in the RF systems of RF accelerators. In this structure, fabrication of RF power divider or combiner be used with coaxial and cylindrical chamber are important. In this study, two-combiners in the same frequency band designed and the results are compared. The results of the practical tests confirmed the...
Mr
Morteza Jafarzadeh
(Iranain Light Source Facility)
چشمهی نور ایران
Poster
This paper describes a 1-D position sensitive detector based on MWPC with delay line position readout which has been designed, simulated and constructed. This kind of detectors are useful in soft X-ray imaging. The detector is capable of being extended to two dimensions position readout. The position resolution of this detector is 230µm.
Mr
Hamid Mohammad Ghasemi
(Behyaar Sanaat Sepahan), Mr
Navid Nejatbakhsh
(Behyaar Sanaat Sepahan)
کاربردها در پزشکی
Poster
Radiation protection blocks are used for constructing different forms of cancerous tumors in the form of lead blocks. After preparing blocks, lead is poured into it, which depending on dimensions and forms of cancerous tumors, a lead block is prepared for being installed on the medical linear accelerator and collimator. The task of these shielding blocks is to control and limit radiation for...
Mr
mohammad nazari
(shahid beheshti university)
دیگر مقالات
Poster
Abstract
In this article a DC type of thermoionic electron gun is disigned and simulated by using the cst studio suite for an electrostatic accelerator for industrial applications. The gun cathode is a surface type and is made up of tungsten. Aperture diameter of the anode in this gun is 3mm and distence from anode to surface of the cathode is 13mm. in this article at first the gun operation...
Mr
Rashid Amani
(Isfahan University of Technology)
شتابگر سیکلوترون
Poster
Physics department with cooperation central laboratory at Isfahan university of technology perform a project of manufacturing a cyclotron. The subject of this paper is evaluating the optimum values of the main parameters to design the electromagnet of the cyclotron For this purpose, we used CST code to simulate the electromagnet. The simulation was done for several cyclotrons with and 2 MeV...
Mr
ali mohammad poursaleh
(aeoi)
شتابگر رودوترون یزد
Poster
In this paper the different geometries for coaxial cavity of Rhodotron accelerator has been investigated. This cavity resonance in TEM mode, the frequency is 107MHz to state that even small changes in the dimensions will be effect on basic parameters such as the accelerator resonant frequency and power losses, that Using computational relations and the results of simulations by CST software is...
Dr
hossein rashidi
(Presenter)
دیگر مقالات
Poster
In the present work, a dipole magnet was simulated by CST software and 5 MeV electron beam passed through it. This electron beam was deflected under the influence of a magnetic field. Also, this dipole can be used as a magnetic spectrometer for electron beams. If several charged particles with the same rest mass traverse a magnetic field, they can be differentiated in their velocity according...
Dr
Majid Emami_Meibodi
(Research complex of radiation application, P.O. Box: 11368-3486, Yazd, Iran)
کاربردها در صنعت و علوم
Poster
electron beam (EB) can be used in disinfection of municipal wastewater and textile industry effluent treatment. However high capital investment and energy consumption of this process raises doubts about its economics. In this work the economy of EB is compared to the conventional methods. The present value of different processes are compared using their operating and investment cost and an...
Dr
Ahad Ollah Ezzati
(University of Tabriz)
کاربردها در پزشکی
Poster
Recent studies suggest that relative biological damage (RBD) may change from in to out off field regions for 10 MV photon beams. In this study RBD was calculated in and out of field of 10 clinical photon beams including low energy slowing down electrons in track length estimated method. Elekta Synergy linear accelerator was simulated using MCNPX code. Electron and photon spectra at energies...
Dr
Ahad Ollah Ezzati
(Faculty of Physics, University of Tabriz)
کاربردها در پزشکی
Poster
At the high energy photon beams, electron contamination significantly affects the absorbed dose of the skin and the organs that were located at the first few centimeters in depth. Varian 2100 C/D was simulated exactly and the effect of electron contamination of the accelerator components upstream of the movable jaws on the absorbed dose was calculated. Differences between measured and...
Dr
Mostafa Salahshoor
(ACECR - Sharif University Branch)
کاربردها در صنعت و علوم
Poster
In this paper, the vacuum film deposition through electron beam evaporation has been reviewed and the effect of magnetic field on the operation of this system has been explained. The magnetic field distribution due to magnetic components of a commercial evaporation source with 270-degree electron beam gun (manufactured by Sharif university branch of ACECR), has been simulated by means of a...
Mr
Davoud Agha Aligol
(Physics and Accelerators Research School, Nuclear Science and Technology Research Institute, Tehran, Iran)
شتابگر واندوگراف
Poster
Different pigments have been used in the green and white glazes on potteries excavated in Rayy. In this research, several samples from these enameled potteries were analyzed using micro-PIXE. Bases on the elemental maps obtained from micro-PIXE, the elements responsible for black, brown, red and blue color were identified.
Mr
ali mohammad poursaleh
(aeoi)
شتابگر رودوترون یزد
Poster
In this paper the feasibility study of a new method of RF power coupling to acceleration cavity of charged particles accelerator will be discussed. In this method a slit around the accelerator cavity is created, and RF power amplifier is connected directly to the acceleration cavity. In fact, in this design the cavity in addition to the acceleration cavity, also acts as a RF power combiner....
Ms
Maryam Kargaran
(Arak University of Sciences)
کاربردها در پزشکی
Poster
Abstract:
Introduction: with regard to the critical organs in head and neck, radiotherapy of tumors that are in this area is very important. Air cavities such as sinuses can disturb radiotherapy dose distribution and cause overdose, underdose or beam scattering. Radiotherapy dose distribution can help to optimize patient treatment planning and protect organs at risk. The aim of this research...
Mr
Aliakbar Chaheh
(university of tehran)
دیگر مقالات
Poster
In order to shape the extracted helium and oxygen ion beams from a Penning ion source, cylindrical and aperture type lenses were designed and manufactured. By changing the voltage of the middle lens of the Einzel lens the beam width was controlled. The beam profile as a function of the voltage of the middle lens was measured using a grid of thin wires placed down stream. Fitting a Gaussian...
Dr
Masood Akmali
(Physics and Accelerator research School, Nuclear Science and Technology Research Institute,)
کاربردها در صنعت و علوم
Poster
High-spin states in 130Ce, through quadruple analysis (γ4) of the data several bands have been identified for the first time and the previously reported structures have been extended to high spin. A new strongly coupled structure has been found and is interpreted as based on a mixed neutron-proton high-K four-quasiparticle configuration. The newly observed structures have been suggested on the...
Mr
Mir Yaghoub Hashemi
(Bonab research center)
کاربردها در صنعت و علوم
Poster
According to surveys conducted tungsten metal having a high melting point and maintain the physical and mechanical properties at high temperatures (refractory metal) and also the possibility of building structures with controlled porosity of tungsten metal, powder metallurgy method widely used in the construction of modern dispenser cathodes used conceived In emitters electrons. The...
79.
Functionalization of mesoporous silica as a drug delivery system using electron beam irradiation
Mr
Siamak Ghafoorzadeh
(Centeral Iran Research Complex, Yazd, Nucear Science and Technology Research Institute)
کاربردها در پزشکی
Poster
Background
MCM-41 is a family member of mesoporous silica compound used as a heterogeneous catalyst in many chemical processes. Due to having high level and uniform channel, it is used for material handling in reactions and drug delivery systems. The aim of this study is to functionalize the MCM-41 by electron exposure and obtain optimum conditions.
Materials and methods
MCM-41...
Dr
Seyed Pezhman Shirmardi
((Centeral Iran Research Complex, Yazd, Nuclear Science and Technology Research Institute))
کاربردها در پزشکی
Poster
Background
Titanium dioxide (TiO2) as heterogeneous catalysts in many chemical processes that are used, Titania, due to the high level and consistent channels for the transfer of materials and drug delivery systems used. The aim of this study is to functionalize the titania by electron beam irradiation and obtaining of optimum conditions.
Materials and methods
TiO2 functionalized with...
Dr
Abbas Ahmadi
(Department of Nuclear Engineering, Malayer Branch, Islamic Azad University, Malayer, Iran.)
کاربردها در صنعت و علوم
Poster
----------
Cherenkov radiation is generated when relativistic charged particles moving in a medium with refractive index larger than unity. In the X-ray region, however, the refractive index is generally smaller than unity, but in the vicinity of atomic absorption edges, the refractive index may exceed unity and Cherenkov radiation can be generated in soft X-ray region with a narrow band...
Mr
Amin Iraji
(ILSF, IPM)
چشمهی نور ایران
Poster
The synchrotron light sources are very sensitive to asymmetric settlements. In a way that asymmetric settlements in order of a few millimeters can disrupt the operation of the accelerator machine.In the light source projects the accurate study and recognition of the underground soil characteristics is greatly important.This paper presents an exploration program to investigate geotechnical...
Mr
seyyed javad atyabi
(UNIVERSITY OF MAZANDARAN)
کاربردها در صنعت و علوم
Poster
In this paper we introduced the gravitational waves and some features and an approximation is given of the gravitational wave power radiated by a circulating bunch of particles in high energy accelerators. We obtained for LEP-2 a value of 5.6×〖10〗^(-6) eV/s, and for a 100 TeV proton synchrotron 0.1 eV/s. These values correspond to the largest continuous and periodic source of this type of...
Mr
peyman sahrapour
(The medical student of Iran university of medical sciences (IUMS))
شتابگر خطی
Poster
The electron gun can be considered as the most important part of devices such as radar, medical linear accelerators, thrusters and rhodotrons. The electron gun performance is highly dependent on the quality of the cathode and heater. Design and manufacturing of cathode as a source of electrons is the first goal of this investigation. Additionally, achievment of optimal method for alumina...
Mrs
Elham Moradkhani
(Yazd Azad University)
کاربردها در صنعت و علوم
Poster
The main objective of this research was to investigate the effect of high energy electron beam irradiation on the morphology and mechanical properties of the compatibilized blend based on ethylene vinyl acetate copolymer (EVA)/Starch (St)/polyethylene-grafted maleic anhydride (PE-g-MAH). The EVA-rich blend sample containing 25 wt.% St and 5 wt.% PE-g-MAH was prepared by melt belnding method....
Dr
Masood Akmali
(Nuclear science and technology research centre, School of physics and accelerators)
کاربردها در صنعت و علوم
Poster
Recent developments in heavy ion accelerators and gamma-ray detection systems have made the study of nuclear structure at high angular momentum feasible. The high spin structures of rare-earth nuclei 156Er have been studied using the fusion evaporation reactions[1]. At the highest values of angular momentum 156Er undergoes a Coriolis-induced shape transition from a deformed (prolate) state of...
Mrs
Mandana Salehi
(Department of Energy Engineering & Physics, Amirkabir University of Technology, Tehran, 15875-4413, Iran)
شتابگر سیکلوترون
Poster
in this paper, Explained the process of calculation and design of accelerator proton cavity cyclotron and effects of cavity’s Fundamental parts for tunning frequency to produce radioactive isotope FDG(FluoroDeoxyGlucose) for use in PET imaging system . proton,in 71 MHz resonant frequency of the cavity Accelerated and is designed to accelerate the ions with an energy output of 10 Mev. It...
Mrs
Samira Fatehi
(IPM)
چشمهی نور ایران
Poster
Iranian light source facility is a 3 GeV storage ring with a booster ring which is supposed to work at 150Kev injection energy and guide the electrons to the ring energy 3GeV. In this paper magnet design of the booster ring is discussed. It consists of 50 combined bending magnets in 1 type, 50 quadrupole and 30 sextupoles in 1 family. Using two dimensional codes POISSON and FEMM, a pole and...
Mrs
Samaneh Bagheri
(Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran 14778-93855)
لیزر و پلاسما
Poster
The Synchrocyclotron is utilized to accelerate the proton for proton therapy that must be supported by enormous and massive complexes and capital investments. Recently, a laser-accelerated system introduced that its generated protons have a broad energy spectrum. In order to have a quasi-monoenergetic beam, it is needed to collimate huge number of protons. Therefore, a new method is needed...
Dr
Mohamad Mehdi Firoozabadi
(Birjand University), Mrs
Nazila Divani
(Birjand University)
کاربردها در صنعت و علوم
Poster
One of the most challenging and exciting goals of modern physics, is to achievie good and quantitative understanding of the strong interaction. Significant progress is achieved in recent years, all thanks to the remarkable progress in the study of empirical and speculative. Of course, there are still many fundamental questions remain unanswered basically. There are phenomenas such as quarks...
Mr
Davoud Agha Aligol
(Physics and Accelerators Research School, Nuclear Science and Technology Research Institute, Tehran, Iran)
شتابگر واندوگراف
Poster
Throughout history gilding has been used to decorate pottery, tiles, as well as many other objects made of bronze, wood, glass and etc. to answer questions regarding the methods of gold deposition, it is important to know the thickness and purity of the gold layer. In this study enameled potteries dating back to the period from 11th century AC to 13th century AC have been studied using...
Dr
Mostafa Hassanzadeh
(Reactor research schoo)
کاربردها در صنعت و علوم
Poster
The use of spallation neutron sources produced by spallation process induction in a heavy target using charged particle accelerator has been applied in many research centers around the world. These neutron sources have enormous applications in the field of nuclear reactors’ waste incineration, radioisotope production, neutron diffraction systems etc. In this work, the neutronic parameters of...
Dr
Seyed Pezhman Shirmardi
(Nuclear science and Technology Research Institute (NSTRI)), Mr
oveys shojaee kazaj
(مجتمع پژوهشی ایران مرکزی), Mr
reza hafezi moghadam
(مجتمع پژوهشی ایران مرکزی), Mr
سید احمد حسینی
(مجتمع پژوهشی ایران مرکزی)
کاربردها در پزشکی
Poster
because of relieve properties of beta-glucan in skin improvement and Indefectible in the electron beam irradiation, increasing of this material in hydrogels can reduce the rugosity and refreshment of it. In this study with synthesize of beta-glucan and adding to hydrogel, by variation at Agar and PAAm percentages, whater absorbency, gel percentage and mechanical strength in different electron...
Mr
Hamid Rajabzadeh Dizaj
(Bonab research center)
کاربردها در صنعت و علوم
Poster
Cathode as electron emission source, the most important parts of electron pieces including the electron gun used in electron accelerators and is known as the heart of this devices. These dispenser tungsten cathodes that the emitter materials are infiltered into the block of tungsten powder is pressed, that is one of the most important cathodes which are known as high-density current cathode....
Mrs
Mohadeseh golshanian
(shahrood university of thecnologhy), Dr
Yaser Kasesaz
(Nuclear Science and Technology Research Institute of Iran)
کاربردها در پزشکی
Poster
Boron Neutron Capture Therpy (BNCT) is a method of cancer therpy. The main requirement and challenge in BNCT is the aproperite neutron beam. All reported clinical trials have been used a research reactor as a neutron source. The major disadvantage of this neutron source is related to theri social acceptance. The results of about 60 years researches in BNCT and also the success of this method...
Ms
Tahereh Nikbakht
(Physics & accelerator research school, NSTRI, P O Box 14395-836, Tehran, Iran)
شتابگر واندوگراف
Poster
Ion beam induced luminescence, which is a highly sensitive method of low detection limit of well below 1ppm, has been recently developed in Van de Graaff laboratory of Tehran. This method can give information about the chemical bonds and the defects of the materials, therefore, it is considered as a strong complementary for the common methods of PIXE and RBS. The low integration time of the...
Mr
Farhad Saeidi
(Iranian Light Source Facility; Arak University)
چشمهی نور ایران
Poster
The Iranian Light Source Facility (ILSF) is a new 3 GeV synchrotron radiation laboratory in the Middle East. The ILSF storage ring (SR) is based on a five-Bend Achromat lattice providing an ultralow horizontal beam emittance of 0.48 nm rad. The ring is consisting of 100 pure dipole magnets, 320 quadrupoles and 320 sextupoles.
In this paper, we present some design features of the SR magnets...
Masoumeh Ghomimolkar
(Iran University of Science and Technology)
دیگر مقالات
Poster
Synchrotron radiation in storage rings of electron accelerators is a useful tool which is widely used in science. The limitations in storage rings of modern light sources with small emittance are: first short electron beam lifetime and second energy spread in beam which is originated from instabilities. For overcoming these limitation higher harmonic cavities, so called Landau cavities, can...
Mr
Arash Sadeghipanah
(Iranian Light Source Facility)
چشمهی نور ایران
Poster
In this paper, we introduce the Iranian Light Source Facility (ILSF) pre-injection system’s RF electron gun. The design, fabrication and low power microwave tests results of the prototype RF gun have been described with detail. This paper also explains the tuning procedure of the prototype RF gun to the desired resonant frequency. The outcomes of this project brighten the path to the...
Mr
Yasser Radkhorrami
(Iranian)
چشمهی نور ایران
Poster
Magnetic Measurement Lab is one of the most significant devisions of R&D Lab of Iranian Light Source facility. The main duty of this lab is to check qualification of the accelerator magnets. Moreover, it’s for first time to apply such precision measurements according to synchrotron needs in Iran. The ILSF measurement lab is equiped by Hall effect probe, rotating coil and helmholtz coil....
Mr
Mehran Sardarian
(Electron beam applications and developments Co.)
شتابگر خطی
Poster
In this research, manufacture of ceramic RF window used in X band linear accelerator have been studied. For this purpose, three Al2O3 based ceramics with purity of 94, 96 and 98% were used. Ceramic characterization was performed by densitometry, microstructural and phase analysis. Depending on the intended application, properties such as dielectric loss and strength of ceramic to metal band...
Dr
Tavakkol Tohidi
(Northwest Research Complex, NSTRI)
دیگر مقالات
Poster
Considering that thermionic oxide cathodes are one of the most important electron emission sources for different types of electron tubes, manufacturing processes of the thermionic oxide cathode and emission materials preparation method that it has particular importance is given in this article. From triple carbonate powder barium, calcium, strontium is used as an emission material and with...
Mr
sina esmaeilzadeh kivi
(physics and accelerators research scool,NSTRI,tehran,iran)
شتابگر واندوگراف
Poster
One of the most important issues in regarding old glasses buried beneath the surface of the earth is to measure the elements such as carbon and oxygen in the surface layers. The elemental analysis method of PIXE is not capable to measure these elements. In addition, one significant issue which is constantly encountered in the study of old glasses is to measure the concentration of light...
Mr
Nematollah Heidarloo
(Shahid Beaheshti Uni)
شتابگر خطی
Poster
Intraoperative electron radiotherapy is one of the radiotherapy methods that delivers a high single fraction of radiation dose to the patient during the surgery. Beam shaper is one of the applicators that is recently employed with this radiotherapy method. This applicator has a considerable application in treatment of large tumors. In addition to providing the large rectangular and square...
Ms
Seyedeh Rana Ashraf
(Azad University (Science & Research))
کاربردها در پزشکی
Poster
Microbeam radiation therapy(MRT) is a new method using of radiation in μm scale produced by synchrotron. MRT is a technique utilizing the fact that normal tissue can sustain high doses of radiation in small volumes without significant damage. The main advantages of highly brilliant synchrotron sources are an extremely high dose rate and very small beam divergence. Microbeam radiation therapy...
Mr
Amin Asadi
(Yazd, shahid Sadoughi university of medical sciences, Medicine Faculty, Medical Physics Department)
کاربردها در پزشکی
Poster
Bremsstrahlung Splitting is a technique of dose variance reduction which BEAMnrc Monte Carlo code exploits it to diminish the dose uncertainty. Directional Bremsstrahlung Splitting technique is a kind of the Bremsstrahlung Splitting method, which its algorithms employs all atomic interactions such as photoelectric effect, Compton effect and pair production phenomenon. DBS possesses remarkable...
Mr
shahin souri
(student)
کاربردها در پزشکی
Poster
Nowadays particle accelerators are widely used clinically for the treatment of cancerous tumors. Applications of conventional accelerators according to the level of energy are limited .Dielectic Wall Accelerator ( DWA ) for accelerating particles such as the proton up to 100 Mev has attracted a lot of attention. In this paper, the overview of this technology presented in brife
Mr
Hasan Ghavidel
(Sharif university of Tech)
کاربردها در صنعت و علوم
Poster
In this paper a simple method for optimization of periodic nano-multilayer x-ray mirrors to obtain a high x-ray reflectivity on third lines Ti-Kα, Co-Kα, Cr –Kα based on quarter-wave (QW) thickness method, is described. in this method if layers thickness are odd multiple of QW thickness, reflected x-rays do constructive interference and we have a bragg-peak on reflectivity curve. QW...
Mr
Farzad Zakerhosseini
(Department of Energy Engineering & Physics, Amirkabir University of Technology, Tehran, 15875-4413, Iran)
شتابگر سیکلوترون
Poster
PIG Ion Source is often used as an internal source in cyclotron accelerators. The cold cathode PIG ion source producing H- ions designed for 10MeV cyclotron accelerator in Amirkabir University of Technology. This ion source is placed in the center of the cyclotron and injects desired ions into the vacuum chamber.
In PIG ion sources the H- ions produced in a plasma region. In order to enhance...
masoomeh moradi
(shahid beheshti univercity)
لیزر و پلاسما
Poster
The design of the transport line is very important and operational in the beam dynamics to achieve an optimized design in a way with the small beta function, low energy spread and divergence in the whole transport line. In this paper we have studied the structure of the electron beam transport line for a mid infrared free electron laser. The most important purpose of this work is designing...
Dr
Abdolkazem Ansarinejad
(Nuclear Science and Technology Research Institute(AEOI))
شتابگر واندوگراف
Poster
One of the most important applications of PIXE elemental analysis method, is regarded to cultural heritage studies, in this way, in addition to the effects of the past left to recover, allowing access to historical and cultural information is also provided. Generally due to a Van de Graff accelerator, the elemental analysis using Pixie method is possible to identify material composition of...
Mr
Mansour Esmaeili Sanjavanmareh
(Department of nuclear engineering, Shiraz university)
کاربردها در پزشکی
Poster
Today accelerators are widely used in medicine and industry and most industrial uses of accelerators are in industrial radiography. In this paper we have evaluated different types of accelerators used in industrial radiography . Since linear accelerators and betatrons are widely used in non-destructive tests specially in industrial radiography, we have particularly discussed small size linear...
Mrs
Marzieh Heidarieh
(Nuclear Science and Technology Research Institute, Karaj, Iran,)
کاربردها در پزشکی
Poster
Ergosan contains 1% alginic acid extracted from two brown sea weeds. Little is known about the target organs and anatomical distribution of Ergosan (alginic acid) in fish. Therefore, feasibility of developing alginic acid nanoparticles to detect target organ in rainbow trout is interesting. To make nanoparticles, Ergosan extract (alginic acid) was irradiated at 30 kGy in a cobalt-60 irradiator...
Dr
Seyed Mohammad Amin Hosseini
(Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran.)
کاربردها در پزشکی
Poster
Abstract:
Hadrontherapy is a modern technique of treating different types of cancer. Compared with the conventional radiation therapy in which photons are mainly used, proton and carbon particles employed in hadrontherapy can spare healthy tissues more effectively because of the optimal distribution of their doses. In addition, radiobiological advantages associated with hadron therapy give...
Mr
Morteza Jafarzadeh
(Iranain Light Source Facility)
چشمهی نور ایران
Poster
In order to have as much as possible stable magnetic field in dipole magnets of electron storage ring for Iranian light source facility, using a magnetometer based on Nuclear Magnetic Resonance technique as a feedback for power supplies has been suggested. In this paper some of the different technologies were studied and compared. Some of the key parameters which should be considered, such as...
Mr
mohammad Bardegar
(Moghtader Engineering Co.)
شتابگر خطی
Poster
Design of an electron LINAC with output energy of 500 keV at X-band is done as the first step in fabrication of LINACs. The goal is to design and fabricate a LINAC based on our existing infrastructure to ensure that the project is not dragged on due to any shortcomings. So an X-band existing Magnetron was our best choice to generate and inject the required RF power, which explicitly imposed...
Mr
Ehsan Yousefi
(ILSF-Power supply), Mr
Morteza Jafarzadeh
(Iranain Light Source Facility), Mr
Omid Ahmadi
(ILSF)
چشمهی نور ایران
Poster
It is important to control the magnet current for a high-intensity beam because the magnetic field error displaces the beam parameters (i.e., center of orbit, transverse tune,etc.) from the ideal values and such displacements cause severe beam loss. This issue is much more severefor synchrotrons because the magnetic field must be changed for acceleration. For more precise control of the power...
Mr
Meysam Mohamadi Dadkan
(University of Sistan and Baluchestan)
دیگر مقالات
Poster
Positron annihilation spectroscopy is a non-destructive method for detecting defects in semiconductors and polymers. Using this method requires a mono-energy and focused positron beam in order of milimeter or lower. using electrostatic lenses for extract, accelerate and produce positron beam with desired energy, very important in this method. In this research, we Redesigned the electrostatic...
Mr
hamed nouri
(Telecommunication Engineering, non-profit institute of higher education, ABA, Abyek, Qazvin, Iran)
کاربردها در صنعت و علوم
Poster
Electron beam accelerators technology has made significant progress in environmental applications in recent years. Including applications of environmental industrial accelerators, clearing produced gases by industrial facilities of oxides of nitrogen and sulfur(NOx , SOx). Coal, oil, natural gas and so on combustion gases that are produced in power plant, refineries and industrial factories,...
Mr
Sam Yaghubi
(University of Guilan)
لیزر و پلاسما
Poster
Proton driven Fast Ignition(PFI) is known as an alternative method for the standard approach in Inertial Confinement Fusion(ICF) which its stable transport might be a key issue in the final stage of Hydrogen isotopes nuclear fusion reaction. There is associated two main instabilities growing parallel and perpendicular relative to incident beam. Here, the perpendicular instability known as...
Dr
Abdolkazem Ansarinejad
(Radiation Application Research School, Nuclear Science and Technology Research Institute(AEOI))
دیگر مقالات
Poster
One of the important issues of radiation protection in the italian hadron therapy center, is shielding of synchrotron accelerator, including protection calculation and design of the structure according to the constituent parts of the accelerator ring and on the basis of activities, research, and maintenance accordance standards radiation protection and nuclear safety are basic...
Dr
Ehsan Salimi
(IPM)
چشمهی نور ایران
Poster
To control the beam in a synchrotron accelerator, an important role is played by Beam Stop. It is assumed all electrons are lost in this part. Therefore it is the worst case in radiation shielding considerations. Bremsstrahlung radiation is produced when electron beam strikes stopper. If the bremsstrahlung photon energy is high enough, gas bremsstrahlung can produce neutrons via photo-neutron...
Ms
firuzeh kazemi
(yazd university)
شتابگر رودوترون یزد
Poster
In this paper, a gridded electron gun in order of bunching electron beam, is simulated using both CST Particle Studio software and Magic software. The simulation results are compared with experimental results.
Mr
Saman Azizpourian
(Amirkabir university of technology)
شتابگر سیکلوترون
Poster
Baby Cyclotrons that made in Self-shield type have been employed for use in Medical center For the diagnosis of cancer diseases by psitron emission tomography (PET) system. Here in we have done a discussion on gamma and neutron dose rates at a distance of one meter outside of the cyclotron shielding that consist of Lead, polyethylene( 10% B) layers from inside to outside respectively . With...
Mr
Mostafa Moosazadeh
(Amir Kabir University)
شتابگر خطی
Poster
Linear accelerators are one type of particle accelerator. These accelerators have different application such as medical benefit. By mounted MLC on the head of medical linear accelerator we can deliver Intensity modulated radiation therapy. In this study head of 6 MV linear accelerator modeled by BEAMnrc code and then calculated delivered dose on reference point by DOSXYZnrc. Main purpose of...
Mr
Saeed Sabounchi
(Department of Energy Engineering & Physics, Amirkabir University of Technology, Tehran, 15875-4413, Iran)
شتابگر سیکلوترون
Poster
In designing and developing of cyclotron accelerators, Cooling system and related equipment is crucial. Generally in cooling system of the 10 MeV cyclotron except target which is cooled with helium, other parts of machine which need cooling, use deionized water. In large scale national project of designing and manufacturing of 10 MeV cyclotron accelerator for medical propose, an attain has...
Mr
ali mohammad poursaleh
(aeoi)
شتابگر رودوترون یزد
Poster
The realize of possibility of occurrence of Multipacting effect as annoying and ways to Opposition with that is an important factor in the design of particle accelerators. In this study, the possibility of the occurrence of multipactibg effect in two electron accelerators; ILU6 & RHODOTRON TT200 Using the theory and simulation by CST software is investigated. The simulation results...
Ms
Marjan Zare Sarvi
(Yazd University)
کاربردها در صنعت و علوم
Poster
Multipacting decreases the recieved power of radio frequency systems. In order to suppress multipactor, it is necessary to know the conditions leading to multipactor and avoid them to be happen. Resonance and phase stability conditions are two main conditions of multipacting phenomenon. The electron multipactor has mostly been devoted to study for the simplified case of plane-parallel...
Dr
Mohammad Ghalei
(SUBATECH, France)
کاربردها در صنعت و علوم
Poster
In this study the oxidation/reduction reactions and also speciation of technetium and its homologous manganese and rhenium in highly concentrated carbonate solutions under γ ray and He2+ particle beam have been studied. The direct effect on carbonate radiolysis have been studied by using electron pico-second pulse accelerator by investigating on kinetics of formation and decay of carbonate...
Dr
Behrooz Khosrowpour
(Physic Depeatement of Salman farsi University), Mr
behzad khosrowpour
(nuclear researcher)
کاربردها در صنعت و علوم
Poster
In this paper, by helping from the simulation of Geant 4.6.9, we pass the high energy electrons that are radiant from linear accelerator inly the beam tubes and we find the absorbed dose in human phantom. The distribution of absorbed dose in the phantom that directed in axis X is investigated and then we find these distribution for the high energy of proton.
Dr
behrooz khosrowpour
(Salman Farsi University , Kazerun , Fars), Mr
behzad khosrowpour
(nuclear researcher)
کاربردها در پزشکی
Poster
In this paper, by helping from the simulation of Geant 4.6.9, we pass the high energy electrons (50MeV) that are produced from accelerator inly the bim of filters that are made from beryllium and tungsten and copper and also the case that full of helium gas so in the interaction with the core of these filters all of charge particles are denoyed. Now, the high energy of electron ray is...
Dr
Marzieh Heidarieh
(Nuclear Science and Technology Research Institute, Karaj, Iran,)
کاربردها در پزشکی
Poster
*Ergosan* is an algal based product which modulates and stimulates the immune system in aquatic animals and its active compounds include Alginic acid and polysaccharide compounds enhances the innate immunity of fish. In order to study the metabolic activity of Ergosan in aquatic animals, tracing the radioactivity of labeled alginic acid nanoparticles could be utilized. In this study, alginic...
Dr
Seyed Bijan Jia
(Department of Physics, University of Bojnord, Bojnord, Iran)
لیزر و پلاسما
Poster
Abstract:
In the last decades, the application of hadrontherapy for the treatment of localized cancers has increased rapidly. However, despite the passage of over 60 years from proposing the treatment using protons, hadrontherapy facilities are not very common in all parts of the world as it was expected before due to high costs of building particle accelerators. Of course, with the...
Mr
mohammad javad amrollahi
(aeoi)
کاربردها در صنعت و علوم
Poster
The effect of electron irradiation on the electrical properties of the alloy EVA / LDPE containing soot particles and zinc oxide were studied. The alloy of EVA, with 18 % vinyl acetate (EVA) was used. Due to the EVA polymer microstructure was used for crosslinking and gel caused by electron irradiation test was obtained gel. Dielectric strength and electrical resistance properties of the alloy...
Mr
hadi faghihzadeh
(sharif universuty)
کاربردها در صنعت و علوم
Poster
Human society is encountered with increasing amount of municipal waste production. This has already put forward serious environmental hazards for people living in and around cities. There are varying specifications in physical and chemical properties of wastes according to their origin. It is a common place in the leading countries to use electron accelerators to treat the wastes and relatd...
Mr
Hassan Vosoughian
(institute of laser and optic,Atomic organization)
لیزر و پلاسما
Poster
In this paper the effect of frequency chirped laser pulse on generation of high energy electrons from interaction of high power laser pulse with under dense plasma is investigated. During the laser pulse propagation in a plasma, Non linear effect such as pulse depletion causes to conversion of multi cycle laser pulse to a few cycle pulse that result in the transverse oscillation of...
Mr
mohammad javad amrollahi
(aeoi)
کاربردها در صنعت و علوم
Poster
With adding auxiliary materials (graphite or soot) in polymers to produce an independent network and therefor will increase the electrical conductivity of polymers. nevertheless, the enhancement percentage of graphite or soot will decrease the mechanical properties of the polymer. The enhancement relation of auxiliary material percentage will increase conductivity and decrease the mechanical...
Ms
Sadaf Bagheri
(Arak University of Sciences)
کاربردها در پزشکی
Poster
Abstract
Introduction: The presence of metal prostheses in the body of patients under radiotherapy affects the dose distribution. Density and high atomic number metal prosthesis used in the body make many changes in radiation attenuation and scattering. In this study the effect of knee metal prosthesis with different dimensions and materials on radiotherapy dose distribution has...
Mr
mohammad javad amrollahi
(aeoi)
کاربردها در صنعت و علوم
Poster
In the case of natural stone their colour is the first visible chracterisic. Some stones are idiochoromatic that is colored inherently and characteristically (such as gold or coppor) and others are all ochromatic minerals that is "other colored" due to trace impurities in their composition (type or content) or defects in their structure. Therefor the same element in the various structurs can...
Mr
said khalil mousavi
(mousavi)
شتابگر رودوترون یزد
Poster
In this study, design and construction of cathode-Grid using nano-materials (stranding cathode) is studied. At first, reverse engineering of thermionic cathode rhodotron accelerator available in atomic energy organization, research complex central iran (yazd) was carried out. Then, simulation process, design and also mechanical-thermal analysis using various softwares such as Cst, Simion,...
Mr
ali mohammad poursaleh
(aeoi)
شتابگر رودوترون یزد
Poster
In this paper, the design and possibility study of fabrication of a new RF system in medium and high power industrial electron accelerator has been studied, Where a separate solidstate amplifier with multiple input coupler coupled to the accelerator cavity. In fact, this method instead of using a one big power and RF amplifier, the smaller multi coupler and RF amplifier connected to the...
Mrs
Mitra Ansari
(AEOI)
کاربردها در پزشکی
Poster
This article is the result of an detailed research in the field of 99mTc radiopharmaceuticals by using accelerators. Providing 99mTc, which is the most widely used diagnostic radiopharmaceuticals, causes $ 4 million foreign exchange outflow for Iran annually. In recent years, developed countries such as Canada, America and Britain have started a codified plan to produce this type of...
Mr
sadegh shurche
(Tehran University of Medical Scinces)
کاربردها در پزشکی
Poster
A vascular malformation refers to a vascular lesion disorder which results in a reduced blood flow in the sinusoidal veins without any disruption in neural tissues. The disorder is known through a number of symptoms including headache, epilepsy, and neurologic involvements. The shear surgery is known as an effective treatment method which is followed by a reduction in recurrent bleeding and...
Mr
Hassan Nourkojouri
(AEOI)
کاربردها در صنعت و علوم
Poster
To attend ever increasing to safe drinking water and water preparation for industry and agriculture, decontamination of flowing and underground polluted water and wastewater treatment of textile dyeing, papermill, petrochemical and refinery industries, hospital, municipal wastewater plant, water polluted by PCB and burning materials and heavy metals polluted water for reuse in irrigation and...
Mr
omid seify
(Iranian Light Source Facility,ILSF)
چشمهی نور ایران
Poster
Iranian Light source facility (ILSF) is a modern third generation light source with an electron energy of 3(GeV) and a nominal current of 400 (mA). The facility is under construction by the Institute for research in fundamental sciences. It has a 20-fold symmetric storage ring. In the conceptual design phase it is envisaged that it should provide a 400mA beam current with 0.48 (nm.rad)...