Scheme of Laser-Compton Gamma-ray Beamline in SAGA-LS

Journal Article · Fri Jan 19 04:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2436020· OSTI ID:21049237

Ohgaki, H ^[1]; Koda, S; Iwasaki, Y; Takabayashi, Y; Yoshida, K; Tomimasu, T ^[2]; Uozumi, Y; Ishibashi, K ^[3]

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1. Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 6110011 (Japan)
2. SAGA-LS, 8-7 Yayoigaoka, Tosu, 8410005 (Japan)
3. Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 8128581 (Japan)

A Laser-Compton Gamma-ray beamline in SAGA-LS has been planned to investigate the nuclear science and technology. The electron beam energy of 1.4 GeV and a small emittance are attractive to generate an intense and narrow energy bandwidth of Laser-Compton gamma-ray beam in MeV-region. Thus a design work for a gamma-ray beamline has been performed. Since the electron energy will be fixed, 1.4 GeV, for SR users, the laser wavelength should be variable to tune the energy of the gamma-ray beam. An OPO-DFG laser is one of candidate for this purpose. However, the laser power is not high enough to obtain the gamma-ray yield of -106 photons/s/100mA. The other method to tune the energy of gamma-ray beam is selecting the scattering angle by using a collimator and an absorber. However, simulation shows that the collimator-absorber scheme produce a poor bandwidth of the gamma-ray beam. An acceptable performance beam can be obtained by controlling the energy of electron beam at present stage.

• OSTI ID: 21049237
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 879; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPTON EFFECT
DESIGN
ELECTRON BEAMS
ELECTRONS
GAMMA RADIATION
GEV RANGE
LASER RADIATION
LASERS
MEV RANGE
PERFORMANCE
PHOTON BEAMS
PHOTONS
WAVELENGTHS