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Sano, Asami; Hattori, Takanori; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*
no journal, ,
PLANET is a dedicated beamline for high-pressure at MLF J-PARC, which realizes neutron diffraction experiments under extreme conditions. The beamline is equipped with precise optics, including incident slits and radial collimators, to obtain high-quality data from a small sample in a high-pressure device. Various high-pressure sample environments such as 6-rams multi-anvil press, Paris-Edinburgh cell and MITO system are available depending on the purpose of the research. In this talk, recent technical developments at PLANET and highlight results from user applications will be presented.
Nakajima, Kenji
no journal, ,
JRR-3 is the multipurpose research reactor. After the major upgrading which was finished in 1990, the reactor is running at thermal power of 20 MW. At 7 horizontal beam tubes in the reactor hall and at 2 thermal guide tubes and 3 cold guide tubes in the guide hall, 28 neutron instruments are installed, which are operated by Japan Atomic Energy Agency, Universities including University of Tokyo, Tohoku University, Ibaraki University, Kyoto University and QST. JRR-3 was shut down for after Great East Japan earthquake in 2011 due to the reinforcement work to fit the new regulation, and user program was resumed in 2021. In spite of 10 years interruption of the user operation, now our neutron science at JRR-3 is producing fruitful results in the wide range of field from basic science to industrial applications. In this talk, over view, current status and future prospects of neutron science done at JRR-3 will be given.
Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*
no journal, ,
Ohara, Takashi
no journal, ,
no abstracts in English
Qin, T. Y.*; Hu, F. F.*; Xu, P. G.; Zhang, H.*; Zhou, L.*; Ao, N.*; Su, Y. H.; Shobu, Takahisa; Wu, S. C.*
no journal, ,
Shinohara, Takenao; Kai, Tetsuya; Oikawa, Kenichi; Su, Y. H.; Tsuchikawa, Yusuke; Hayashida, Hirotoshi*; Parker, J. D.*; Matsumoto, Yoshihiro*
no journal, ,
Song, F.; Higuchi, Yuki*; Hibi, Shogo*; Yoshimune, Wataru*; Kato, Satoru*; Shinohara, Takenao
no journal, ,
Harjo, S.; Gong, W.; Kawasaki, Takuro; Mao, W.; Yamasaki, Michiaki*
no journal, ,
Gong, W.; Kawasaki, Takuro; Mao, W.; Ito, Tatsuya; Harjo, S.
no journal, ,
Kawakita, Yukinobu; Kikuchi, Tatsuya*
no journal, ,
Elemental liquid metals such as Ge, Si, Sn, Pb, Zn, Cd, Hg, Ga and Bi show complex structure far from the hard sphere (HS) packing model. Most of them have structural anomaly that an asymmetric-shaped first peak or even a shoulder aside of the first peak exists in structure factor S(Q). Among molten salts with simple cation and anion binary constituents, AgI and CuI which have superionic solid phase have peculiar ionic dynamics in their liquid phase where cation and anion motions are asymmetric. To understand such complex features of these liquids, coherent quasi-elastic neutron scattering (QENS) is very useful tool because it involves information on time evolution of all pair correlations. Properly analyzing coherent QENS leads us to fully understanding of interatomic interactions. In this presentation, we introduce the results of superionic melt CuI and complex liquid metal Bi by the mode distribution analysis (MDA) and the approach through Van Hove function.
Matsuura, Masato*; Kawakita, Yukinobu; Yamada, Takeshi*; Tominaga, Taiki*; Tamatsukuri, Hiromu; Nakagawa, Hiroshi; Ouchi, Keiichi*
no journal, ,