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Oral presentation

Phase transition of Sn/Ge(111) surface studied by reflection high-energy positron diffraction

Hashimoto, Mie; Fukaya, Yuki; Kawasuso, Atsuo; Ichimiya, Ayahiko

no journal, , 

no abstracts in English

Oral presentation

Effects of nuclear deformation on fission fragment mass distributions in the reaction of $$^{30}$$Si+$$^{238}$$U

Nishio, Katsuhisa; Ikezoe, Hiroshi; Nishinaka, Ichiro; Mitsuoka, Shinichi; Nagame, Yuichiro; Watanabe, Yutaka*; Otsuki, Tsutomu*; Hirose, Kentaro*; Sato, Hiroki*; Hofmann, S.*

no journal, , 

no abstracts in English

Oral presentation

Effect of the laser contrast to laser accelerated electron beams

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

no journal, , 

no abstracts in English

Oral presentation

Oral presentation

Photoconductivity variations of hydrogenated amorphous silicon by charged particles

Sato, Shinichiro; Sai, Hitoshi*; Imaizumi, Mitsuru*; Shimazaki, Kazunori*; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Positron annihilation measurements on Si near the melting point

Kawasuso, Atsuo; Maekawa, Masaki

no journal, , 

no abstracts in English

Oral presentation

Start of neutron source and its world's highest-level performance

Maekawa, Fujio

no journal, , 

no abstracts in English

Oral presentation

Effects of $$bar K$$ - $$bar K$$ interaction on the multi-Kaonic nuclei

Muto, Takumi*; Maruyama, Toshiki; Tatsumi, Toshitaka*

no journal, , 

no abstracts in English

Oral presentation

A Multi-step magnetization process of CsFeCl$$_3$$

Inami, Toshiya

no journal, , 

no abstracts in English

Oral presentation

Photon scattering experiments on nuclei at iron region using a $$gamma$$-ray beam from inverse Compton scattering

Shizuma, Toshiyuki; Hayakawa, Takehito; Kikuzawa, Nobuhiro; Ogaki, Hideaki*; Toyokawa, Hiroyuki*; Komatsubara, Tetsuro*

no journal, , 

no abstracts in English

Oral presentation

Observation of temperature dependence of charge excitation spectra in Sr$$_{14-x}$$Ca$$_x$$Cu$$_{24}$$O$$_{41}$$ ($$x$$ = 0, 6) by resonant inelastic X-ray scattering

Yoshida, 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

Oral presentation

Chopper-type neutron inelastic spectrometer 4SEASONS at MLF, J-PARC

Kajimoto, Ryoichi; Yokoo, Tetsuya*; Nakamura, Mitsutaka; Nakajima, Kenji; Inamura, Yasuhiro; Takahashi, Nobuaki; Maruyama, Ryuji; Soyama, Kazuhiko; Mizuno, Fumio; Shibata, Kaoru; et al.

no journal, , 

no abstracts in English

Oral presentation

IR spectroscopy of a protein in a reverse micelle

Murakami, Hiroshi; Nishi, Takaki; Toyota, Yuji

no journal, , 

no abstracts in English

Oral presentation

Local structure analysis of BiFeO$$_3$$-BaTiO$$_3$$ solid solution

Yoneda, Yasuhiro; Yoshii, Kenji; Mori, Shigeo*

no journal, , 

Local structure analysis of 0.75BiFeO$$_3$$-0.25BaTiO$$_3$$ solid solution was carried out by a synchrotron radiation X-ray pair-distribution function (PDF) method with the temperature range from room temperature to 900$$^circ$$C. The 0.75BiFeO$$_3$$-0.25BaTiO$$_3$$ occurred two phase transitions. The average structure of changed from low-temperature rhombohedral structure to pseudo-cubic structure at 500$$^circ$$C, but the local structure unchanged. The local structure changed at second phase transition from pseudo cubic structure to cubic structure at 800$$circ$$C. The local structure of the pseudo-cubic phase can be reproduced not by the average cubic structure but by the distorted rhombohedral structure.

Oral presentation

AMATERAS; A Cold-neutron disk-chopper spectrometer

Nakajima, Kenji; Kawamura, Seiko; Kajimoto, Ryoichi; Inamura, Yasuhiro; Takahashi, Nobuaki; Osakabe, Toyotaka; Wakimoto, Shuichi; Nakamura, Mitsutaka; Ito, Shinichi*; Aizawa, Kazuya; et al.

no journal, , 

no abstracts in English

Oral presentation

In-beam $$gamma$$-ray spectroscopy of $$^{248,250,252}$$Cf using neutron-transfer reactions

Takahashi, Ryuta; Ishii, Tetsuro; Nagae, Daisuke; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Ishii, Yasuo; Matsuda, Makoto; Shizuma, Toshiyuki; Makii, Hiroyuki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Synchrotron radiation photoemission study of uranium compounds

Fujimori, Shinichi; Okochi, Takuo; Okane, Tetsuo; Saito, Yuji; Yamagami, Hiroshi; Fujimori, Atsushi; Aoki, Dai*; Ikeda, Shugo*; Matsuda, Tatsuma; Haga, Yoshinori; et al.

no journal, , 

We have performed synchrotron radiation photoemission study on UFeGa$$_5$$, UB$$_2$$, UPd$$_3$$, UPd$$_2$$Al$$_3$$, UNi$$_2$$Al$$_3$$, URu$$_2$$Si$$_2$$, UPt$$_3$$, UGe$$_2$$, UIr, UPtGa$$_5$$, USb$$_2$$, and UN. Their electronic structures are discussed based on their valence band and core-level photoelectron spectra.

Oral presentation

Software development for neutron experimental instruments at MLF, J-PARC

Nakatani, Takeshi; Inamura, Yasuhiro; Ito, Takayoshi; Kajimoto, Ryoichi; Aoyagi, Tetsuo; Ohara, Takashi; Otomo, Toshiya*; Yasu, Yoshiji*; Suzuki, Jiro*; Morishima, Takahiro*; et al.

no journal, , 

We have started the commissioning of the neutron scattering experiment instruments since May 2008 in MLF, J-PARC. Simultaneously, we have started the commissioning of the data acquisition and analysis software. Experimental users operate this software through the software framework which we have developed. The software framework was developed based on Python which is an object oriented script language. The system implemented with the software framework can seamlessly measure, analyze and visualize with some modules which are experimental control and data analysis. In this presentation, we report the process of the construction and the current status of the software.

Oral presentation

Effect of interfacial roughness correlation on diffuse intensity in a neutron supermirror

Maruyama, Ryuji; Yamazaki, Dai; Ebisawa, Toru*; Soyama, Kazuhiko

no journal, , 

no abstracts in English

Oral presentation

Construction of the advanced positron microprobe

Maekawa, Masaki; Kawasuso, Atsuo

no journal, , 

We have developed a positron microprobe apparatus and also applied it for the research of the nuclear materials. Although the Doppler-broadening measurement was possible using continuous positron beam, positron lifetime annihilation measurement can be carried out using pulsed positron beam formed by a pulsing system which is inserting in the beam line. From the performance test, pulse width of approximately 150ps was confirmed. It was also confirmed that a difference of the lifetime of stainless steel and silicone was detectable. Moreover, our apparatus can be utilized also as a usual scanning electron microscope using the electron gun equipped on the beam port. The complex research using a positron and an electron beam might be possible.

106 (Records 1-20 displayed on this page)