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Suzuki, Seiya; Nemoto, Yoshihiro*; Shiiki, Natsumi*; Nakayama, Yoshiko*; Takeguchi, Masaki*
Annalen der Physik, 535(9), p.2300122_1 - 2300122_12, 2023/09
Times Cited Count:0 Percentile:0(Physics, Multidisciplinary)Secretariat of Symposium on Advanced Photon Research
JAEA-Conf 2016-001, 53 Pages, 2016/03
The 16th Symposium on Advanced Photon Research was held at Kansai Photon Science Institute, Japan Atomic Energy Agency (JAEA-KPSI) in Kizugawa city, Kyoto on October 15 - 16, 2015. This report consists of invited and contributed papers presented at the oral and poster sessions in the Symposium.
Secretariat of Symposium on Advanced Photon Research
JAEA-Conf 2015-001, 93 Pages, 2015/07
The 15th Symposium on Advanced Photon Research was held at Kansai Photon Science Institute, Japan Atomic Energy Agency (JAEA-KPSI) in Kizugawa city, Kyoto on November 13 - 14, 2014. This report consists of invited and contributed papers presented at the oral and poster sessions in the Symposium.
Matsuda, Yasuhiro*; Her, J.-L.*; Michimura, Shinji*; Inami, Toshiya; Ebihara, Takao*; Amitsuka, Hiroshi*
JPS Conference Proceedings (Internet), 3, p.011044_1 - 011044_6, 2014/06
Synchrotron X-ray absorption spectroscopy of CeRhSi has been performed in pulsed high magnetic fields of up to 32 T. The Ce valence is slightly larger than 3+ at 5 K and decreases with increasing magnetic above 20 T. The field-induced valence change seems to correspond to the metamagnetic transition in the magnetization process. This phenomena is similar to our previous result on CeRuSi and seems to be common in Ce-based heavy fermion compounds.
Matsuda, Yasuhiro*; Nakamura, Toshiyuki*; Kuga, Kentaro*; Nakatsuji, Satoru*; Michimura, Shinji*; Inami, Toshiya; Kawamura, Naomi*; Mizumaki, Masaichiro*
Journal of the Korean Physical Society, 62(12), p.1778 - 1781, 2013/06
Times Cited Count:10 Percentile:55.85(Physics, Multidisciplinary)The valence state of Yb ions in - and -YbAlB has been investigated by X-ray absorption and emission spectroscopy at temperatures from 2 to 280 K. It is found that the valence gradually increases with increasing temperature toward 3+ and that the characteristic temperature of the valence fluctuations is about 290 K. We also observe a small increase in the Yb valence ( 0.002) in -YbAlB by a magnetic field of 32 T at 40 K.
Fons, P.*; Kolobov, A.*; Tominaga, Junji*; Katayama, Yoshinori
Nuclear Instruments and Methods in Physics Research B, 238(1-4), p.160 - 162, 2005/08
Times Cited Count:5 Percentile:41.01(Instruments & Instrumentation)Super-resolution (SR) media offer up to a factor of ten increase in areal storage density over conventional DVD media. Although SR has been realized, there is a strong need for a deeper understanding of structural and electronic changes in GeSbTe (GST), a principal optical memory component, with external perturbations. Recording of SR disks leads to the formation of gas-phase bubbles that in turn lead to the development of large stresses on the underlying GST layer. In this paper we report on XAFS of nominally hydrostatic (0-10 GPa) compressive stress-induced structural changes of the metastable crystalline phase of GST. An analysis showed that the initial splitting of Ge Te bond lengths of the room-temperature distorted rocksalt structure decreased to a small but finite splitting for 6 GPa. The implications of this upon the proposed ferroelectric catastrophe super-RENS readout mechanism are discussed.
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:77.25(Physics, Fluids & Plasmas)no abstracts in English
Tamai, Hiroshi; Kurita, Genichi; Matsukawa, Makoto; Urata, Kazuhiro*; Sakurai, Shinji; Tsuchiya, Katsuhiko; Morioka, Atsuhiko; Miura, Yushi; Kizu, Kaname; Kamada, Yutaka; et al.
Plasma Science and Technology, 6(3), p.2281 - 2285, 2004/06
Times Cited Count:0 Percentile:0.02(Physics, Fluids & Plasmas)High performance steady-state operation for JT-60SC are evaluated by the TOPICS analysis. 5 and bootstrap current fraction 86% is kept steady at I=1.5 MA, B=2 T by neutral beam power of 11 MW. The ERATO-J analysis shows that the external-kink mode with multiple toroidal mode numbers of n=1 and n=2 is stable at 5.5 at the average ratio of conducting wall radius to plasma minor radius of about 1.2 with the wall stabilisation effect. Resistive wall modes, induced by a close location of the wall to plasma, is expected to be suppressed by the active feedback stabilisation with a set of non-axisymmetric field coils behind the stabilising plates. Further optimisation for the high- accessibility by the plasma shaping is performed with the TOSCA analysis. The plasma shaping factor defined as S=(I/aB)q and strongly correlated to the plasma elongation and triangularity, is scanned from 4 to 6, which extends the availability of current and pressure profile control for the high performance plasma operation.
Yoshizawa, Michio; Endo, Akira
JAERI-Conf 2003-002, 166 Pages, 2003/03
The present report is Proceedings of the Third Workshop on Dosimetry for External Radiations, held at the Tokai Research Establishment, Japan Atomic Energy Research Institute (JAERI), in November 28-29, 2002. The proceedings comprises 16 papers and a summary of general discussion. The Third Workshop, subtitled "On an opportunity of the completion of the facility of calibration standards for neutron at JAERI", focused on neutron dosimetry and included presentations on the status of international neutron standards, the development of calibration techniques of neutron dosimeters using accelerator neutron sources, and dosimetry for high-energy neutrons. The workshop identified the directions for the future research and development in this field.
Tani, Norio; Kanazawa, Kenichiro; Shimada, Taihei; Suzuki, Hiromitsu; Watanabe, Yasuhiro; Adachi, Toshikazu*; Someya, Hirohiko*
Proceedings of 8th European Particle Accelerator Conference (EPAC 2002), p.2376 - 2378, 2002/00
The 3-GeV synchrotron proposed in the JAERI/KEK Joint Project is a rapid-cycling synchrotron (RCS), which accelerates a high-intensity proton beam from 400 MeV to 3 GeV at a repetition rate of 25 Hz. The 3-GeV synchrotron is used to produce pulsed spallation neutrons and muons. It also works as an injector for a 50-GeV synchrotron. Since the magnets for the 3-GeV synchrotron are required to have a large aperture in order to realize the large beam power of 1 MW, there is a large leakage field at an end part than a usual synchrotron magnet. In addition, 25-Hz ac field induces an eddy current in magnet components: e.g. a coil, magnet end plates and etc. We intend to use a stranded conductor as a coil conductor so that the eddy current induced in the coil can be reduced. On the other hand, the eddy current induced in the end plates is expected to be large. Therefore, it is important to investigate an effect of the large leakage field and the eddy current to the beam motion around the magnet end part. We have constructed a prototype dipole magnet and field measurement system for this purpose. This paper reports the results of the design and the preliminary test about this magnet.
Ando, Toshinari; Isono, Takaaki; Nakajima, Hideo; Kikuchi, Mitsuru; Tsuji, Hiroshi
Fusion Technology 1998, p.791 - 794, 1998/00
no abstracts in English
Ando, Toshinari
Teion Kogaku, 32(2), p.38 - 46, 1997/00
no abstracts in English
Nees, J.*; G.Mourou*; Biswal, S.*; J.Itatani*; A.C.Tien*; J.C.Chanteloup*; Nishimura, Akihiko; *
Ultrafast Optics 1997, 4 Pages, 1997/00
no abstracts in English
*; Wachi, Y.*; Shimada, M.*; *; *; Hamajima, Takataro*; Fujioka, T.*; Nishi, Masataka; Tsuji, Hiroshi; Ando, Toshinari; et al.
IEEE Transactions on Applied Superconductivity, 3(1), p.480 - 483, 1993/03
Times Cited Count:4 Percentile:45.53(Engineering, Electrical & Electronic)no abstracts in English
Aoki, Nobuo*; *; *; *; Shimada, M.*; Hamajima, Takataro*; *; Fujioka, T.*; Takahashi, Yoshikazu; Ando, Toshinari; et al.
Cryogenics, 33(6), p.581 - 585, 1993/00
Times Cited Count:2 Percentile:17.83(Thermodynamics)no abstracts in English
Yokota, Wataru; Saito, Yuichi; Ishii, Yasuyuki; Nara, Takayuki; Arakawa, Kazuo
Proc. of the 11th Int. Workshop on Electron Cyclotron Resonance Ion Sources; ECRIS 11, p.245 - 248, 1993/00
no abstracts in English
Yamamoto, Keiichi*; Yoshida, Kiyoshi; Yasukawa, Yukio*; Tsukamoto, Hideo*; Sasaki, Takashi*; Okuno, Kiyoshi; Nishi, Masataka; Koizumi, Norikiyo; Isono, Takaaki; Sugimoto, Makoto; et al.
Proc. of the 17th Symp. on Fusion Technology, 0, p.971 - 975, 1993/00
no abstracts in English
Yokota, Wataru; Saito, Yuichi; Ishii, Yasuyuki; Nara, Takayuki; Arakawa, Kazuo
Proc. of the 9th Symp. on Accelerator Science and Technology, p.92 - 94, 1993/00
no abstracts in English
Tanaka, Shigeru; Ohira, Tatsuya*; Nakamura, Kazuyuki
Journal of Nuclear Materials, 196-198, p.357 - 362, 1992/12
Times Cited Count:0 Percentile:0.01(Materials Science, Multidisciplinary)no abstracts in English
Nishi, Masataka; Ando, Toshinari; Isono, Takaaki; Sugimoto, Makoto; Koizumi, Norikiyo; Yoshida, Kiyoshi; Kawano, Katsumi; Takahashi, Yoshikazu; *; Tsuji, Hiroshi; et al.
IEEE Transactions on Magnetics, 28(1), p.597 - 600, 1992/01
Times Cited Count:5 Percentile:52.28(Engineering, Electrical & Electronic)no abstracts in English