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Journal Articles

Stabilization of radiation reaction with vacuum polarization

Seto, Keita*; Zhang, S.*; Koga, J. K.; Nagatomo, Hideo*; Nakai, Mitsuo*; Mima, Kunioki*

Progress of Theoretical and Experimental Physics (Internet), 2014(4), p.043A01_1 - 043A01_10, 2014/04

 Times Cited Count:9 Percentile:57.95(Physics, Multidisciplinary)

Journal Articles

Recent progress in the energy recovery linac project in Japan

Sakanaka, Shogo*; Akemoto, Mitsuo*; Aoto, Tomohiro*; Arakawa, Dai*; Asaoka, Seiji*; Enomoto, Atsushi*; Fukuda, Shigeki*; Furukawa, Kazuro*; Furuya, Takaaki*; Haga, Kaiichi*; et al.

Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.2338 - 2340, 2010/05

Future synchrotron light source using a 5-GeV energy recovery linac (ERL) is under proposal by our Japanese collaboration team, and we are conducting R&D efforts for that. We are developing high-brightness DC photocathode guns, two types of cryomodules for both injector and main superconducting (SC) linacs, and 1.3 GHz high CW-power RF sources. We are also constructing the Compact ERL (cERL) for demonstrating the recirculation of low-emittance, high-current beams using above-mentioned critical technologies.

Journal Articles

A New measurement of the astrophysical $$^8$$Li($$alpha$$, n)$$^{11}$$B reaction

Ishiyama, Hironobu*; Hashimoto, Takashi; Ishikawa, Tomoko*; Watanabe, Yutaka*; Das, S. K.*; Miyatake, Hiroari; Mizoi, Yutaka*; Fukuda, Tomokazu*; Tanaka, Masahiko*; Fuchi, Yoshihide*; et al.

Physics Letters B, 640(3), p.82 - 85, 2006/09

 Times Cited Count:31 Percentile:84.87(Astronomy & Astrophysics)

The excitation function of the $$^{8}$$Li($$alpha$$,n)$$^{11}$$B reaction was measured while identifying the final state event by event in the region of E$$_{rm{cm}}$$ = 0.7 - 2.6 MeV using a highly efficient detector system and a low-energy $$^8$$Li beam. The results are much improved both in statistics and precisions, and show smaller cross sections than those of previous measurements by a factor of more than 2 in the low-energy region of E$$_{rm{cm}}le$$ 1.5 MeV. A resonance-like structure is found at around E$$_{rm{cm}}$$ = 0.85 MeV.

Journal Articles

A New measurement of the $$^8$$Li($$alpha$$,n)$$^{11}$$B reaction for astrophysical interest

Das, S. K.*; Fukuda, Tomokazu*; Mizoi, Yutaka*; Ishiyama, Hironobu*; Miyatake, Hiroari*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Tanaka, Masahiko*; Yoshikawa, Nobuharu*; Jeong, S.-C.*; et al.

AIP Conference Proceedings 847, p.374 - 376, 2006/07

no abstracts in English

Journal Articles

Gated multiple-sampling and tracking proportional chamber; New detector system for nuclear astrophysical study with radioactive nuclear beams

Hashimoto, Takashi; Ishiyama, Hironobu*; Ishikawa, Tomoko*; Kawamura, Takashi*; Nakai, Koji*; Watanabe, Yutaka*; Miyatake, Hiroari; Tanaka, Masahiko*; Fuchi, Yoshihide*; Yoshikawa, Nobuharu*; et al.

Nuclear Instruments and Methods in Physics Research A, 556(1), p.339 - 349, 2006/01

 Times Cited Count:32 Percentile:89.59(Instruments & Instrumentation)

A new type of three dimensional tracking and proportional gas counter has been developed. Adopting a gating-grid system, performance of the detector becomes stable under the injection rate of charged particles less than 4$$times$$10$$^4$$ pps. It is a useful detection system for astrophysical experiments using radioactive nuclear beams, since the efficiency is so high as 100 %.

Journal Articles

Opacity effect on extreme ultraviolet radiation from laser-produced tin plasmas

Fujioka, Shinsuke*; Nishimura, Hiroaki*; Nishihara, Katsunobu*; Sasaki, Akira; Sunahara, Atsushi*; Okuno, Tomoharu*; Ueda, Nobuyoshi*; Ando, Tsuyoshi*; Tao, Y.*; Shimada, Yoshinori*; et al.

Physical Review Letters, 95(23), p.235004_1 - 235004_4, 2005/12

 Times Cited Count:139 Percentile:95.49(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Characterization of extreme ultraviolet emission from laser-produced spherical tin plasma generated with multiple laser beams

Shimada, Yoshinori*; Nishimura, Hiroaki*; Nakai, Mitsuo*; Hashimoto, Kazuhisa*; Yamaura, Michiteru*; Tao, Y.*; Shigemori, Keisuke*; Okuno, Tomoharu*; Nishihara, Katsunobu*; Kawamura, Toru*; et al.

Applied Physics Letters, 86(5), p.051501_1 - 051501_3, 2005/01

 Times Cited Count:110 Percentile:94.58(Physics, Applied)

no abstracts in English

Journal Articles

Temporal evolution of temperature and density profiles of a laser compressed core

Ochi, Yoshihiro; Golovkin, I.*; Mancini, R.*; Uschmann, I.*; Sunahara, Atsushi*; Nishimura, Hiroaki*; Fujita, Kazuhisa*; Louis, S.*; Nakai, Mitsuo*; Shiraga, Hiroyuki*; et al.

Review of Scientific Instruments, 74(3), p.1683 - 1687, 2003/03

 Times Cited Count:10 Percentile:50.25(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

The First loading fuel elements and power-up for JRR-2

JRR-2 Control Office; Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Kohayakawa, Toru; Morozumi, Minoru; Kambayashi, Yuichiro; Shitomi, Hajimu; Kokanezawa, Takashi; et al.

JAERI 1027, 57 Pages, 1962/09

JAERI-1027.pdf:4.76MB

no abstracts in English

JAEA Reports

Efficiency testing of the control and cooling systems of JRR-2

Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Haginoya, Kinichi; Kohayakawa, Toru; Yamaki, Jikei; Yokota, Mitsuo; Horiki, Oichiro; Yuhara, Shunichi; et al.

JAERI 1023, 120 Pages, 1962/09

JAERI-1023.pdf:8.67MB

no abstracts in English

JAEA Reports

Treatment and analysis of the water and gas in JRR-2

JRR-2 Operations Office; Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Haginoya, Kinichi; Kohayakawa, Toru; Yamaki, Jikei; Yokota, Mitsuo; Horiki, Oichiro; et al.

JAERI 1024, 79 Pages, 1962/08

JAERI-1024.pdf:5.66MB

no abstracts in English

JAEA Reports

Critical experiments and characteristic measurement for JRR-2

JRR-2 Critical Experiments Group; Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Kohayakawa, Toru; Morozumi, Minoru; Kambayashi, Yuichiro; Shitomi, Hajimu; Kokanezawa, Takashi; et al.

JAERI 1025, 62 Pages, 1962/03

JAERI-1025.pdf:4.6MB

no abstracts in English

Oral presentation

Study of astrophysical ($$alpha$$,n) reactions on light neutron-rich nuclei using low-energy radioactive nuclear beams

Hashimoto, Takashi; Mitsuoka, Shinichi; Ichikawa, Shinichi; Ikezoe, Hiroshi; Miyatake, Hiroari; Ishiyama, Hironobu*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Tanaka, Masahiko*; et al.

no journal, , 

no abstracts in English

Oral presentation

Study for laser-driven particle acceleration

Sagisaka, Akito; Ogura, Koichi; Nishikino, Masaharu; Pirozhkov, A. S.; Kawachi, Tetsuya; Nishiuchi, Mamiko; Kando, Masaki; Kondo, Kiminori; Arikawa, Yasunobu*; Kojima, Sadaoki*; et al.

no journal, , 

High-intensity laser and thin-foil interactions produce high-energy particles and hard X-ray. A proton beam driven by a high-intensity laser has received attention as a ion source for medical and other applications. We have performed high energy laser-matter interaction experiments using a thin-foil target irradiated by LFEX laser at Osaka University. The three beams were focused at a thin-foil target. The maximum proton energy of $$sim$$40 MeV energy were observed at the total laser energy of $$sim$$700 J. The preliminary experiment for plasma mirror are started.

Oral presentation

Study for laser-driven particle acceleration

Sagisaka, Akito; Ogura, Koichi; Pirozhkov, A. S.; Nishikino, Masaharu; Kon, Akira; Nishiuchi, Mamiko; Esirkepov, T. Z.; Kando, Masaki; Kawachi, Tetsuya; Kondo, Kiminori; et al.

no journal, , 

High-intensity laser and thin-foil interactions produce high-energy particles and hard X-ray. A proton beam driven by a high-intensity laser has received attention as a ion source for medical and other applications. We have performed high energy laser-matter interaction experiments using a thin-foil target irradiated by LFEX laser at Osaka University. The three beams were focused at a thin-foil target. The maximum proton energy of $$sim$$40 MeV energy were observed at the total laser energy of $$sim$$1 kJ. The proton acceleration experiment with plasma mirror are started.

Oral presentation

Proton generation from thin-foil with high-intensity laser

Sagisaka, Akito; Ogura, Koichi; Nishikino, Masaharu; Pirozhkov, A. S.; Kawachi, Tetsuya; Nishiuchi, Mamiko; Kon, Akira; Kando, Masaki; Kondo, Kiminori; Arikawa, Yasunobu*; et al.

no journal, , 

no abstracts in English

Oral presentation

Application of nuclear photonics for nuclear non-proliferation and security

Koizumi, Mitsuo; Lee, J.; Ito, Fumiaki*; Takahashi, Tone; Suzuki, Satoshi*; Omer, M.*; Seya, Michio*; Hajima, Ryoichi; Shizuma, Toshiyuki; Yogo, Akifumi*; et al.

no journal, , 

Oral presentation

Developments of neutron resonance transmission analysis using a laser driven neutron source, 1; Applicability of laser driven neutron source for neutron resonance transmission analysis

Takahashi, Tone; Koizumi, Mitsuo; Ito, Fumiaki*; Lee, J.; Suzuki, Satoshi*; Hironaka, Kota; Yogo, Akifumi*; Arikawa, Yasunobu*; Abe, Yuki*; Nishimura, Hiroaki*; et al.

no journal, , 

Oral presentation

Pulsed neutron source and its applications realized by laser

Yogo, Akifumi*; Mirfayzi, S. R.*; Arikawa, Yasunobu*; Abe, Yuki*; Iwamoto, Akihumi*; Hayakawa, Takehito*; Koizumi, Mitsuo; Golovin, D.*; Mori, Takato*; Lan, Z.*; et al.

no journal, , 

no abstracts in English

Oral presentation

Neutron resonance absorption by laser-driven source; Toward "Single Shot" analysis

Yogo, Akifumi*; Lan, Z.*; Hayakawa, Takehito*; Arikawa, Yasunobu*; Abe, Yuki*; Mirfayzi, S. R.*; Koizumi, Mitsuo; Mori, Takato*; Wei, T.*; Fujioka, Shinsuke*; et al.

no journal, , 

no abstracts in English

Oral presentation

The Development of laser-driven epithermal neutron source for resonance spectral diagnostics, 2

Lan, Z.*; Yogo, Akifumi*; Mirfayzi, S. R.*; Koizumi, Mitsuo; Hayakawa, Takehito*; Arikawa, Yasunobu*; Abe, Yuki*; Golovin, D.*; Mori, Takato*; Wei, T.*; et al.

no journal, , 

21 (Records 1-20 displayed on this page)