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Kawase, Keigo; Kando, Masaki; Hayakawa, Takehito; Daito, Izuru; Kondo, Shuji; Homma, Takayuki; Kameshima, Takashi; Kotaki, Hideyuki; Chen, L. M.*; Fukuda, Yuji; et al.
no journal, ,
After the confirmation of the generation of the Compton backscattered X-rays with Nd:YAG laser and 150 MeV electron beam pulses at last fiscal year, we make some improvements for increase the generated X-ray flux. As one of them, we are developing the laser pulse compression with the stimulated Brillouin scattering (SBS) to obtain a high peak intensity of the Nd:YAG laser. As the SBS medium, we adopt a liquid fluorocarbon which has well achievements for the pulse compression at ILE at Osaka University. We aim the compressed pulse duration to be less than 1 ns. On this meeting we show the present status of the SBS pulse compression system for the Compton backscattering. In addition, we present the recent result of the Compton backscattering experiment without the laser compression technique.
Moribayashi, Kengo
no journal, ,
no abstracts in English
Sakai, Toru; Tonegawa, Takashi*; Okamoto, Kiyomi*
no journal, ,
The S=1/2 distorted diamond chain is investigated by the density matrix renormalization group and the numerical exact diagonalization. We found that an incommensurate long-range order is induced by the external magnetic field above the 1/3 magnetization plateau. We using this result theoretically explain the field induced incommensurate order observed in the azurite.
- interaction on the multi-Kaonic nucleiMuto, Takumi*; Maruyama, Toshiki; Tatsumi, Toshitaka*
no journal, ,
no abstracts in English
-ray beam from inverse Compton scatteringShizuma, Toshiyuki; Hayakawa, Takehito; Kikuzawa, Nobuhiro; Ogaki, Hideaki*; Toyokawa, Hiroyuki*; Komatsubara, Tetsuro*
no journal, ,
no abstracts in English
Ca
Cu
O
(
= 0, 6) by resonant inelastic X-ray scatteringYoshida, Masahiro; Ishii, Kenji; Jarrige, I.; Ikeuchi, Kazuhiko; Murakami, Yoichi*; Mizuki, Junichiro; Tsutsui, Kenji; Toyama, Takami*; Maekawa, Sadamichi*; Kudo, Kazutaka*; et al.
no journal, ,
no abstracts in English
Fe(CO
)
(HO)Matsuda, Masaaki; Honda, Zentaro*
no journal, ,
We performed neutron inelastic scattering experiments in NaFe(CO)(HO) that consists of two-leg spin ladders of Fe
ions. We observed sharp magnetic excitation peaks around 
3.5 meV and 5.3 meV. This result shows that the magnetic excitations originate from almost isolated dimers, indicating that the interaction along the leg direction is negligibly small.
O
Wakimoto, Shuichi; Kimura, Hiroyuki*; Fukunaga, Mamoru*; Takeda, Masayasu; Kakurai, Kazuhisa; Noda, Yukio*
no journal, ,
no abstracts in English
Sr
NiO
and LaBaCuOWakimoto, Shuichi; Ishii, Kenji; Ikeuchi, Kazuhiko; Kakurai, Kazuhisa; Mizuki, Junichiro; Kimura, Hiroyuki*; Noda, Yukio*; Adachi, Tadashi*; Koike, Yoji*; Fujita, Masaki*; et al.
no journal, ,
no abstracts in English
O; Neutron scatteringYasui, Yukio*; Sato, Kenji*; Moyoshi, Taketo*; Kobayashi, Yoshiaki*; Sato, Masatoshi*; Kakurai, Kazuhisa
no journal, ,
no abstracts in English
Utsuno, Yutaka; Otsuka, Takaharu*; Brown, B. A.*; Homma, Michio*; Mizusaki, Takahiro*
no journal, ,
no abstracts in English
Kawana, Daichi; Watanuki, Tetsu; Machida, Akihiko; Aoki, Katsutoshi; Tsai, A. P.*
no journal, ,
no abstracts in English
AlMatsuda, Tatsuma; Haga, Yoshinori; Aoki, Dai*; Tateiwa, Naoyuki; Homma, Yoshiya*; Ikeda, Shugo*; Shiokawa, Yoshinobu*; Settai, Rikio*; Onuki, Yoshichika
no journal, ,
no abstracts in English
Fukaya, Yuki
no journal, ,
no abstracts in English
Fukuda, Tatsuo; Baron, A. Q. R.*; Shamoto, Shinichi; Uchiyama, Hiroshi*; Ishikado, Motoyuki; Nakamura, Hiroki; Machida, Masahiko; Mizuki, Junichiro; Arai, Masatoshi; Iyo, Akira*; et al.
no journal, ,
Recently discovered iron-arsenide new superconductor has attracted considerable attraction. Within a few months the transition temperature (
) exceeded 50 K in some related compounds, and the possible novel physics as well as higher- are expected. At the early stage, calculations of phonon properties appeared and suggested that the superconductivity in these materials are not phonon mediated. However, the experimental verification is crucial. We carried out inelastic X-ray scattering on some powder as well as single samples, and found pronounced softening of the Fe-As modes compared to LDA-based phonon calculations. However, further investigation on single crystals showed the spectra are found to agree much better with calculations of the magnetic parent material, which has orthorhombic symmetry, than those using a tetragonal structure like the real superconducting compounds.
Yoshimoto, Masahiro
no journal, ,
no abstracts in English
Suzuki, Junichi; Takata, Shinichi; Shinohara, Takenao; Oku, Takayuki; Kira, Hiroshi; Suzuya, Kentaro; Aizawa, Kazuya; Arai, Masatoshi; Otomo, Toshiya*; Sugiyama, Masaaki*
no journal, ,
no abstracts in English
Hashimoto, Shintaro; Ogata, Kazuyuki*; Chiba, Satoshi; Yahiro, Masanobu*
no journal, ,
The incomplete fusion reaction, in which a part of a projectile is absorbed by a target, proceeds through a compound process. There is a long history of the study of the fusion reaction. However, the incomplete fusion process is not sufficiently well understood. The process contributes significantly in the reaction involving weakly bound nuclei, and the understanding of the reaction mechanism is required. Since a weakly bound nucleus, such as deuteron, breaks up easily in the reaction, the model taking into account the breakup process is required for the analysis. We extended the Continuum-Discretized Coupled-Channels (CDCC) method, and applied to the analysis of incomplete fusion reaction. In the present paper, we show calculated results of incomplete fusion cross section in the deuteron induced reaction on 
Li target, and discuss the importance of the process.
Kumada, Takayuki; Noda, Yohei; Hashimoto, Takeji; Koizumi, Satoshi; Ishikawa, Norito; Ohara, Kota
no journal, ,
We tried to determine distribution of radicals produced by radiolysis of polymer materials using techniques of dynamic nuclear polarization and small-angle neutron scattering.