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Oral presentation

Observation of pressure-induced disproportionation reaction of LaH$$_2$$ using vibrational spectroscopies

Sakurai, Yoko; Machida, Akihiko; Aoki, Katsutoshi

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

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

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

Secondary electron emission from amorphous carbon foils by impact of swift carbon cluster ions

Takahashi, Yasuyuki; Narumi, Kazumasa; Chiba, Atsuya; Saito, Yuichi; Yamada, Keisuke; Ishikawa, Norito; Sugai, Hiroyuki; Maeda, Yoshihito

no journal, , 

no abstracts in English

Oral presentation

Ultrahigh-pressure SR M$"{o}$ssbauer spectroscopy of GdFe$$_{2}$$

Mitsui, Takaya; Seto, Makoto; Masuda, Ryo; Hirao, Naohisa*

no journal, , 

no abstracts in English

Oral presentation

Present status of experimental apparatus for neutron optics and physics at J-PARC BL05

Sakai, Kenji; Muto, Suguru*; Ino, Takashi*; Yoshioka, Tamaki*; Mishima, Kenji*; Taketani, Kaoru*; Shimizu, Hirohiko*

no journal, , 

no abstracts in English

Oral presentation

Investigation of astrophysical origin of p-nuclei

Hayakawa, Takehito; Iwamoto, Nobuyuki; Kajino, Toshitaka*; Shizuma, Toshiyuki; Umeda, Hideyuki*; Nomoto, Kenichi*

no journal, , 

About 99% of nuclides heavier than an iron group were dominantly synthesized by neutron capture nucleosynthesis processes. In contrast, there is 35 p-nuclei, which cannot be synthesized by the neutron capture reactions. Among the 35 p-nuclei, evidence that 27 p-nuclei are synthesized by photon-induced reactions in supernova explosions was found. However, the origin of the other 8 p-nuclei has been remained as an open question. Here we discuss the method to understand these origin by using astronomical observation and meteorite analyses. We suggest a primitive meteorite analysis for the study of Mo, Ru, and Sm origins. Since Mo and Ru (Sm) locate near the neutron magic number of N=50 (82), their origins may be correlated. There are two isotopes of In-113 and In-115 and astronomical observation of these two isotope ratio is useful for understanding the origin of these nuclei.

Oral presentation

Ultra-high intensity laser driven particle acceleration

Daido, Hiroyuki

no journal, , 

no abstracts in English

Oral presentation

Magnetism of low-temperature ordered phase in CeOs$$_4$$Sb$$_{12}$$ probed by $$mu$$SR

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki*; Sato, Kazuhiko*; Aoki, Yuji*; Toda, Shizuka*; Kikuchi, Daisuke*; Sato, Hideyuki*

no journal, , 

no abstracts in English

Oral presentation

Profile measurement and analysis of ablative-capillary-discharge plasma channel

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

no journal, , 

The technology of laser optical guiding is important for the laser plasma electron acceleration in order to improve electron beams's energy gain, because the duration of laser focusing represents the length of the laser wakefield. In present, capillary discharge is promising to generate a plasma channel for a laser pulse. Plasma channel in the capillary has a refraction structure in the radial direction to guide a laser pulse, In addition, it is possible to generate a cm-scale plasma, and therefore, the length of the laser wakefield is significantly extended. In this presentation, we reports the investigation of the ablative capillary. The profile measurement and analysis result are presented.

106 (Records 1-20 displayed on this page)