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Search Results: Records 1-8 displayed on this page of 8
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Journal Articles

MeV- and sub-MeV-photon sources based on Compton backscattering at SPring-8 and KPSI-JAEA

Kawase, Keigo; Kando, Masaki; Hayakawa, Takehito; Daito, Izuru; Kondo, Shuji; Homma, Takayuki; Kameshima, Takashi; Kotaki, Hideyuki; Chen, L.*; Fukuda, Yuji; et al.

Nuclear Physics Review, 26(Suppl.), p.94 - 99, 2009/07

We constructed MeV- and sub-MeV-photon sources by means of Compton backscattering with a laser light and an electron beam at SPring-8 and KPSI-JAEA. MeV-photon source consists of a continuous-wave optically-pumped far infrared laser and an 8-GeV stored electron beam. Sub-MeV-photon source consists of a Nd:YAG pulse-laser and an 150-MeV electron beam accelerated by a microtron. Both source have been succeeded backscattered photon generation. In this talk, I will present characteristics and future prospects of these photon sources.

Journal Articles

MeV $$gamma$$-ray generation from backward Compton scattering at SPring-8

Kawase, Keigo; Arimoto, Yasushi*; Fujiwara, Mamoru; Okajima, Shigeki*; Shoji, Masazumi*; Suzuki, Shinsuke*; Tamura, Kazuhiro*; Yorita, Tetsuhiko*; Okuma, Haruo*

Nuclear Instruments and Methods in Physics Research A, 592(3), p.154 - 161, 2008/07

https://doi.org/10.1016/j.nima.2008.04.008
 Times Cited Count：20 Percentile：77.66(Instruments & Instrumentation)

A test experimental line at SPring-8 has been constructed for the generation of backward Compton scattered (BCS) $$gamma$$-ray by head-on collision between an 8 GeV electron beam and a far-infrared (FIR) laser. For the FIR laser, we use a continuous-wave methanol laser optically pumped by a carbon dioxide ($${rm CO}_{2}$$) laser. The FIR laser output power achieved is 1.6 W at maximum for 118.8 $$mu$$m lasing; this value is the highest in the case of this type of laser. As a result of the direct measurement, the generated BCS $$gamma$$-ray flux was found to be about $$10^{3}$$ photons/s. This value is consistent with the estimation calculated by taking into account the input laser power and the transmittance of the laser transport system.

Journal Articles

Beam-palarization asymmetries for the $$p$$($$overrightarrow{gamma}$$,$$K$$$$^{+}$$)$$Lambda$$ and $$p$$($$overrightarrow{gamma}$$,$$K$$$$^{+}$$)$$Sigma$$$$^{0}$$ reactions for $$E$$$$_{gamma}$$=1.5-2.4 GeV

Zegers, R. G. T.*; Sumihama, Mizuki*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Dat$'e$, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; et al.

Physical Review Letters, 91(9), p.092001_1 - 092001_4, 2003/08

https://doi.org/10.1103/PhysRevLett.91.092001
 Times Cited Count：128 Percentile：94.9(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Evidence for a narrow $$S$$ = +1 Baryon resonance in photoproduction from the neutron

Nakano, Takashi*; Ahn, D. S.*; Ahn, J. K.*; Akimune, Hidetoshi*; Asano, Yoshihiro; Chang, W. C.*; Date, S.*; Ejiri, Hiroyasu*; Fujimura, Hisako*; Fujiwara, Mamoru; et al.

Physical Review Letters, 91(1), p.012002_1 - 012002_4, 2003/07

https://doi.org/10.1103/PhysRevLett.91.012002
 Times Cited Count：1006 Percentile：99.86(Physics, Multidisciplinary)

no abstracts in English

JAEA Reports

Study of closed orbit distortion from high speed phase switching of variably-polarizing undulator APPLE-2 in 2001 March-June

Nakatani, Takeshi; Tanaka, Hitoshi*; Takao, Masaru*; Agui, Akane; Yoshigoe, Akitaka; Takeuchi, Masao*; Aoyagi, Hideki*; Okuma, Haruo*

JAERI-Tech 2003-048, 29 Pages, 2003/05

JAERI-Tech-2003-048.pdf:1.14MB

no abstracts in English

Journal Articles

Operation of circular dichroism measurements with periodic photon-helicity switching by an APPLE-2 type undulator at BL23SU at SPring-8

Agui, Akane; Yoshigoe, Akitaka; Nakatani, Takeshi; Matsushita, Tomohiro*; Saito, Yuji; Mizumaki, Masaichiro*; Yokoya, Akinari; Tanaka, Hitoshi*; Miyahara, Yoshikazu*; Shimada, Taihei; et al.

Hoshako, 14(5), p.339 - 348, 2001/11

http://ci.nii.ac.jp/naid/10007157437

no abstracts in English

Journal Articles

First operation of circular dichroism measurements with periodic photon-helicity switching by a variably polarizing undulator at BL23SU at SPring-8

Agui, Akane; Yoshigoe, Akitaka; Nakatani, Takeshi*; Matsushita, Tomohiro*; Saito, Yuji; Yokoya, Akinari; Tanaka, Hitoshi*; Miyahara, Yoshikazu*; Shimada, Taihei; Takeuchi, Masao*; et al.

Review of Scientific Instruments, 72(8), p.3191 - 3197, 2001/08

https://doi.org/10.1063/1.1382635
 Times Cited Count：21 Percentile：71.63(Instruments & Instrumentation)

no abstracts in English

Oral presentation

2nd investigation and research on depth distribution in soil of radionuclides released by accident of Fukushima Dai-ichi Nuclear Power Station, TEPCO, 3; Soil characterization and sorption-desorption experiments of Cs and I

Tanaka, Shingo; Sato, Haruo; Okuma, Seichi*; Watanabe, Naoko*; Kozaki, Tamotsu*; Sato, Seichi*; Abe, Hironobu; Niizato, Tadafumi; Aoki, Kazuhiro

no journal, , 

no abstracts in English

8 (Records 1-8 displayed on this page)
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