TY - JOUR
T1 - Development of high intensity laser-electron photon beams up to 2.9 GeV at the SPring-8 LEPS beamline
AU - Muramatsu, N.
AU - Kon, Y.
AU - Daté, S.
AU - Ohashi, Y.
AU - Akimune, H.
AU - Chen, J. Y.
AU - Fujiwara, M.
AU - Hasegawa, S.
AU - Hotta, T.
AU - Ishikawa, T.
AU - Iwata, T.
AU - Kato, Y.
AU - Kohri, H.
AU - Matsumura, T.
AU - Mibe, T.
AU - Miyachi, Y.
AU - Morino, Y.
AU - Nakano, T.
AU - Nakatsugawa, Y.
AU - Ohkuma, H.
AU - Ohta, T.
AU - Oka, M.
AU - Sawada, T.
AU - Wakai, A.
AU - Yonehara, K.
AU - Yoon, C. J.
AU - Yorita, T.
AU - Yosoi, M.
N1 - Funding Information:
We thank the staff at SPring-8 for the supports with excellent experimental conditions. This research was supported in part by the Ministry of Education, Science, Sports and Culture of Japan .
PY - 2014/2/11
Y1 - 2014/2/11
N2 - A laser-Compton backscattering beam, which we call a 'Laser-Electron Photon' beam, was upgraded at the LEPS beamline of SPring-8. We accomplished the gains in backscattered photon beam intensities by factors of 1.5-1.8 with the injection of two adjacent laser beams or a higher power laser beam into the storage ring. The maximum energy of the photon beam was also extended from 2.4 GeV to 2.9 GeV with deep-ultraviolet lasers. The upgraded beams have been utilized for hadron photoproduction experiments at the LEPS beamline. Based on the developed methods, we plan the simultaneous injection of four high power laser beams at the LEPS2 beamline, which has been newly constructed at SPring-8. As a simulation result, we expect an order of magnitude higher intensities close to 107 s-1 and 106 s-1 for tagged photons up to 2.4 GeV and 2.9 GeV, respectively.
AB - A laser-Compton backscattering beam, which we call a 'Laser-Electron Photon' beam, was upgraded at the LEPS beamline of SPring-8. We accomplished the gains in backscattered photon beam intensities by factors of 1.5-1.8 with the injection of two adjacent laser beams or a higher power laser beam into the storage ring. The maximum energy of the photon beam was also extended from 2.4 GeV to 2.9 GeV with deep-ultraviolet lasers. The upgraded beams have been utilized for hadron photoproduction experiments at the LEPS beamline. Based on the developed methods, we plan the simultaneous injection of four high power laser beams at the LEPS2 beamline, which has been newly constructed at SPring-8. As a simulation result, we expect an order of magnitude higher intensities close to 107 s-1 and 106 s-1 for tagged photons up to 2.4 GeV and 2.9 GeV, respectively.
KW - Electron storage ring
KW - Hadron photoproduction experiment
KW - High energy photons
KW - High intensity beam
KW - Laser-Compton backscattering
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U2 - 10.1016/j.nima.2013.11.039
DO - 10.1016/j.nima.2013.11.039
M3 - Article
AN - SCOPUS:84890470651
SN - 0168-9002
VL - 737
SP - 184
EP - 194
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -