学術雑誌論文 Generation of High Energy Gamma-ray by Laser Compton Scattering of 1.94-μm Fiber Laser in UVSOR-III Electron Storage Ring

Zen, Heishun  ,  Taira, Yoshitaka  ,  Konomi, Taro  ,  Hayakawa, Takehito  ,  Shizuma, Toshiyuki  ,  Yamazaki, Junichiro  ,  Kii, Toshiteru  ,  Toyokawa, Hiroyuki  ,  Katoh, Masahiro  ,  Ohgaki, Hideaki

89pp.335 - 345 , 2016-06 , Elsevier Ltd.
ISSN:1876-6102
内容記述
CoE on Sustainable Energy System (Thai-Japan), Faculty of Engineering, Rajamangala University of Technology Thanyaburi (RMUTT), Thailand
Development of a laser Compton scattering (LCS) gamma-ray source in the UVSOR-III storage ring has been proposed to perform basic research on non-destructive three dimensional isotope imaging. As the first step of the development, a numerical simulation was performed to evaluate the performance of the gamma-ray source. The expected total flux is about 1×107 photons/s when a 1.94-μm CW fiber laser with the maximum power of 5 W collides with 300-mA electron beam circulating in the storage ring. The maximum gamma-ray energy and the total flux available were measured in experiment and determined as 5403 ± 16 keV with 1×10[7] photons/s, respectively. The electron beam energy was evaluated as 746 ± 1 MeV from the measured maximum gamma-ray energy. From the numerical calculation and the experimental result, the energy spread of 2.9% in full width at half maximum and the flux of 4×10[5] photons/s are expected for the LCS gamma-ray beam when a collimator with 2-mm hole is used to limit the scattered angle. The quality of gamma-ray beam generated in UVSOR-III is enough to perform a basic study on the non-destructive three dimensional isotope imaging.
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http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/216245/1/j.egypro.2016.05.044.pdf

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