Speaker
Dr
Elham Salehi
(--)
Description
The nearly isolated precise measurement of vacuum contribution, Delbruk scattering, to the
elastic scattering of photons of nuclei can be realized by using high-flux linearly-polarized
gamma-ray sources. For the proof of principle experiment, an intense linearly polarized gamma-
ray beam with an energy lower than 1 MeV should be provided. In order to examine the
available gamma-ray performance at UVSOR facility by colliding a CO 2 laser with a 746-MEV
electron beam, a preliminary experiment has been performed. As a result, it was confirmed that
the maximum energy of the gamma-rays was slightly lower than 1 MeV and the measured
gamma-ray flux was evaluated to be 4106 photons/eV/mA/W/s around the peak energy of
950keV.
Author
Dr
Heishun zen
(Kyoto University)
Co-author
Dr
Elham Salehi
(--)