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Journal Articles

Insertable pulse cleaning module with a saturable absorber pair and a compensating amplifier for high-intensity ultrashort-pulse lasers

Yogo, Akifumi; Kondo, Kiminori; Mori, Michiaki; Kiriyama, Hiromitsu; Ogura, Koichi; Shimomura, Takuya; Inoue, Norihiro*; Fukuda, Yuji; Sakaki, Hironao; Jinno, Satoshi; et al.

Optics Express (Internet), 22(2), p.2060 - 2069, 2014/01

 Times Cited Count:8 Percentile:47.84(Optics)

Journal Articles

Identified charged hadron production in $$p + p$$ collisions at $$sqrt{s}$$ = 200 and 62.4 GeV

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Armendariz, R.*; et al.

Physical Review C, 83(6), p.064903_1 - 064903_29, 2011/06

 Times Cited Count:156 Percentile:99.42(Physics, Nuclear)

Transverse momentum distributions and yields for $$pi^{pm}, K^{pm}, p$$, and $$bar{p}$$ in $$p + p$$ collisions at $$sqrt{s}$$ = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the RHIC. We present the inverse slope parameter, mean transverse momentum, and yield per unit rapidity at each energy, and compare them to other measurements at different $$sqrt{s}$$ collisions. We also present the scaling properties such as $$m_T$$ and $$x_T$$ scaling and discuss the mechanism of the particle production in $$p + p$$ collisions. The measured spectra are compared to next-to-leading order perturbative QCD calculations.

Journal Articles

Deoxymugineic acid increases Zn translocation in Zn-deficient rice plants

Suzuki, Motofumi*; Tsukamoto, Takashi*; Inoue, Haruhiko*; Watanabe, Satoshi; Matsuhashi, Shimpei; Takahashi, Michiko*; Nakanishi, Hiromi*; Mori, Satoshi*; Nishizawa, Naoko*

Plant Molecular Biology, 66(6), p.609 - 617, 2008/04

 Times Cited Count:118 Percentile:95.26(Biochemistry & Molecular Biology)

JAEA Reports

Stabilization of simulated radioactive lead waste and simulated low level radioactive liquid waste using reformed sulfur (Joint research)

Sone, Tomoyuki; Sasaki, Toshiki; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Inoue, Haruka*; Kihara, Tsuyoshi*; Takei, Yoshihisa*; Tatekawa, Takaiki*; Fukaya, Masaaki*; Iriya, Keishiro*; et al.

JAEA-Technology 2008-032, 25 Pages, 2008/03

JAEA-Technology-2008-032.pdf:5.54MB

Reformed sulfur (RS) is superior in water interception and acid resistance compared with cement. Therefore solidified wastes with RS should have the high resistance to leaching. Unconfined compressive strength test and leaching test using solidified simulated wastes containing lead contaminated with radioactive nuclides (Lead waste) with RS and solidified simulated low level radioactive liquid waste (LLLW) with RS were conducted to examine the applicability of reformed sulfur solidification method (RSSM) as solidification technique of Lead waste and LLLW. The results of these studies show that RSSM is effective technique for stabilization of lead compared with cement solidification method because solidified lead with RS has much stronger resistance to leaching of lead than solidified lead with cement. It also show that the applicability of RSSM as solidification technique of the waste containing lead oxide and LLLW is low because the resistance to leaching of solidified lead oxide with RS and of solidified simulated LLLW with RS were equal to or lower than those of solidified products with cement respectively.

JAEA Reports

Analytical work at NUCEF in FY 2006

Sakazume, Yoshinori; Aoki, Hiromichi; Haga, Takahisa; Fukaya, Hiroyuki; Sonoda, Takashi; Shimizu, Kaori; Niitsuma, Yasushi*; Ito, Mitsuo; Inoue, Takeshi

JAEA-Technology 2007-069, 44 Pages, 2008/02

JAEA-Technology-2007-069.pdf:4.55MB

Analysis of the uranyl nitrate solution fuel is carried out at the analytical laboratory of NUCEF (Nuclear Fuel Cycle Engineering Research Facility), which provides essential data for operation of STACY (Static Experiment Critical Facility), TRACY (Transient Experiment Critical Facility) and the fuel treatment system. Analyzed in FY 2006 were uranyl nitrate solution fuel samples taken before and after experiments of STACY and TRACY, samples for the preparation of uranyl nitrate solution fuel, and samples for nuclear material accountancy purpose. The total number of the samples analyzed in FY 2006 was 254. This report summarizes work related to the analysis and management of the analytical laboratory in the FY 2006.

JAEA Reports

Analytical work at NUCEF in FY 2005

Fukaya, Hiroyuki; Aoki, Hiromichi; Haga, Takahisa; Nishizawa, Hidetoshi; Sonoda, Takashi; Sakazume, Yoshinori; Shimizu, Kaori; Niitsuma, Yasushi*; Shirahashi, Koichi; Inoue, Takeshi

JAEA-Technology 2007-005, 27 Pages, 2007/03

JAEA-Technology-2007-005.pdf:1.97MB

Analysis of the uranyl nitrate solution fuel is carried out at the analytical laboratory of NUCEF (Nuclear Fuel Cycle Engineering Research Facility), which provides essential data for operation of STACY (Static Experiment Critical Facility), TRACY (Transient Experiment Critical Facility) and the fuel treatment system. Analyzed in FY 2005 were uranyl nitrate solution fuel samples taken before and after experiments of STACY and TRACY, samples for the preparation of uranyl nitrate solution fuel, and samples for nuclear material accountancy purpose. Also analyzed were the samples from raffinate treatment and its preliminary tests. The raffinate was generated, since FY 2000, during preliminary experiments on U/Pu extraction-pulification to fix the operation condition to prepare plutonium solution fuel to be used for criticality experiments at STACY. This report summarizes work related to the analysis and management of the analytical laboratory in the FY 2005.

Journal Articles

Ultrarelativistic electron generation during the intense, ultrashort laser pulse interaction with clusters

Fukuda, Yuji; Akahane, Yutaka; Aoyama, Makoto; Hayashi, Yukio; Homma, Takayuki; Inoue, Norihiro*; Kando, Masaki; Kanazawa, Shuhei; Kiriyama, Hiromitsu; Kondo, Shuji; et al.

Physics Letters A, 363(2-3), p.130 - 135, 2007/02

Collimated relativistic electrons up to 58 MeV with an electron charge of 2.1 nC were generated by the interaction of intense laser pulses with the Ar cluster target at the laser intensity of 3.5$$times$$10$$^{19}$$W/cm$$^{2}$$. The resulting spectrum does not fit a Maxwellian distribution, but is well described by a two-temperature Maxwellian, which indicates two mechanisms of the electron acceleration. Two dimensional particle-in-cell simulations demonstrate an important role of clusters. The higher energy electrons are injected when they are expelled from the clusters by the laser pulse field. They then gain their energy during the direct acceleration by the laser pulse, whose phase velocity in the underdense plasma is larger than speed of light in vacuum. The lower energy electrons, which are injected during the plasma wave breaking, are accelerated by the wakefield.

Journal Articles

Prepulse-free, multi-terawatt, sub-30-fs laser system

Kiriyama, Hiromitsu; Inoue, Norihiro*; Akahane, Yutaka; Yamakawa, Koichi

Optics Express (Internet), 14(1), p.438 - 445, 2006/01

 Times Cited Count:23 Percentile:70.48(Optics)

no abstracts in English

Journal Articles

Generation and evaluation of a 10$$^{20}$$ W/cm$$^{2}$$ intensity by focusing wavefront corrected 100 TW, 10 Hz laser pulses

Akahane, Yutaka; Ma, J.; Fukuda, Yuji; Aoyama, Makoto; Kiriyama, Hiromitsu; Inoue, Norihiro*; Tsuji, Koichi*; Nakai, Yoshiki*; Yamamoto, Yoichi*; Sheldakova, J. V.*; et al.

Japanese Journal of Applied Physics, Part 1, 44(8), p.6087 - 6089, 2005/08

 Times Cited Count:1 Percentile:4.93(Physics, Applied)

An improvement of laser-focused peak intensity has been achieved in a JAERI 100 TW Ti:sapphire chirped-pulse amplifier chain with a feedback-controlled adaptive optics system. Measurements of optical parameters of the laser pulse and an experimental tunneling ionization ratio of a rare gas atom with laser energy scaling have practically confirmed an ultrarelativistic intensity of over 10$$^{20}$$ W/cm$$^{2}$$ operating at a 10 Hz repetition rate.

Journal Articles

Electron acceleration by a nonlinear wakefield generated by ultrashort (23-fs) high-peak-power laser pulses in plasma

Kando, Masaki; Masuda, Shinichi; Zhidkov, A.*; Yamazaki, Atsushi; Kotaki, Hideyuki; Kondo, Shuji; Homma, Takayuki*; Kanazawa, Shuhei; Nakajima, Kazuhisa; Hayashi, Yukio; et al.

Physical Review E, 71(1), p.015403_1 - 015403_4, 2005/01

 Times Cited Count:33 Percentile:79.46(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Super strong field ionization of atoms by 10$$^{19}$$ Wcm$$^{-2}$$, 10 Hz laser pulses

Yamakawa, Koichi; Akahane, Yutaka; Fukuda, Yuji; Aoyama, Makoto; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu

Journal of Modern Optics, 50(15-17), p.2515 - 2522, 2003/10

no abstracts in English

Journal Articles

Design of a focusing high-energy heavy ion microbeam system at the JAERI AVF cyclotron

Oikawa, Masakazu*; Kamiya, Tomihiro; Fukuda, Mitsuhiro; Okumura, Susumu; Inoue, Hiromitsu*; Masuno, Shinichi*; Umemiya, Shinsuke*; Oshiyama, Yoshifumi*; Taira, Yutaka*

Nuclear Instruments and Methods in Physics Research B, 210(1-4), p.54 - 58, 2003/09

 Times Cited Count:24 Percentile:83.46(Instruments & Instrumentation)

no abstracts in English

Journal Articles

0.85-PW, 33-fs Ti:sapphire laser

Aoyama, Makoto; Yamakawa, Koichi; Akahane, Yutaka; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu

Optics Letters, 28(17), p.1594 - 1596, 2003/09

 Times Cited Count:252 Percentile:99.34(Optics)

no abstracts in English

Journal Articles

25J green beam generation using large aperture CsLiB$$_{6}$$O$$_{10}$$ frequency doubler

Kiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi

Reza Kenkyu, 31(4), p.282 - 285, 2003/04

no abstracts in English

Journal Articles

Generation of a 0.55-PW, 33-fs laser pulse from a Ti:sapphire laser system

Yamakawa, Koichi; Aoyama, Makoto; Akahane, Yutaka; Ma, J.; Inoue, Norihiro*; Ueda, Hideki; Kiriyama, Hiromitsu

Reza Kenkyu, 30(12), p.747 - 748, 2002/12

no abstracts in English

Journal Articles

Large-aperture CsLiB$$_{6}$$O$$_{10}$$ frequency doubler for high-energy Nd:Glass laser

Kiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi

High-Power Lasers and Applications II (Proceedings of Photonics Asia 2002 Volume 4914), p.6 - 13, 2002/10

no abstracts in English

JAEA Reports

High efficiency, High energy second-harmonic generation of Nd:glass laser radiation in large aperture CsLiB$$_{6}$$O$$_{10}$$ crystals

Kiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi

JAERI-Research 2002-020, 13 Pages, 2002/09

JAERI-Research-2002-020.pdf:1.14MB

no abstracts in English

Journal Articles

High energy second-harmonic generation of Nd:glass laser radiation with large aperture CsLiB$$_{6}$$O$$_{10}$$ crystals

Kiriyama, Hiromitsu; Inoue, Norihiro*; Yamakawa, Koichi

Optics Express (Internet), 10(19), p.1028 - 1032, 2002/09

 Times Cited Count:3 Percentile:20.26(Optics)

no abstracts in English

JAEA Reports

Fabrication of saturated temperature capsule for IASCC study

Ishikawa, Kazuyoshi; Kikuchi, Taiji; Isozaki, Futoshi*; Inoue, Hiromi; Oba, Toshihiro; Matsui, Yoshinori; Saito, Takashi; Nakano, Junichi; Tsuji, Hirokazu

JAERI-Tech 2002-061, 69 Pages, 2002/08

JAERI-Tech-2002-061.pdf:12.21MB

Study of irradiation assisted stress corrosion cracking (IASCC) is an important subject for the plant life assessment and extension of the light water reactors (LWRs). It is necessary that initiation mechanism of IASCC should be made clear under combined effect of irradiation, environment and stress in order to understand IASCC phenomena. Under the existing circumstance, Saturated Temperature Capsule (SATCAP) were fabricated for the irradiation test of IASCC studies in Japan Material Testing Reactor (JMTR). SATCAP is the irradiation rig to irradiate materials in high pressure water of controlled chemistry and temperature simulating Boiling water reactors (BWRs) core environment from the new water feelding system of out-of-pile. This report describes (1) investigation of technical problems for the design and fabrication of SATCAP, (2) the tests results of the problems and (3) fabrication and inspection of SATCAP.

Journal Articles

The Method for decrease of helium gas leak with O-ring rubber gasket

Oba, Toshihiro; Inoue, Hiromi*; Kikuchi, Taiji; Taka, Isamu; Chiba, Masaaki; Ishikawa, Kazuyoshi; Tsuda, Kazumi*; Takeyama, Tomonori; Isozaki, Futoshi*; Terunuma, Isao*; et al.

NIFS-MEMO-36, p.121 - 124, 2002/06

no abstracts in English

27 (Records 1-20 displayed on this page)