Magnetic structure of divalent europium compound EuGa studied by single-crystal time-of-flight neutron diffraction

Kawasaki, Takuro; Kaneko, Koji; Nakamura, Ai*; Aso, Naofumi*; Hedo, Masato*; Nakama, Takao*; Ohara, Takashi; Kiyanagi, Ryoji; Oikawa, Kenichi; Tamura, Itaru; et al.

Journal of the Physical Society of Japan, 85(11), p.114711_1 - 114711_5, 2016/11

https://doi.org/10.7566/JPSJ.85.114711

Current status of an extreme environment single crystal neutron diffractometer SENJU at J-PARC

Ohara, Takashi; Kiyanagi, Ryoji; Kaneko, Koji; Tamura, Itaru; Nakao, Akiko*; Hanashima, Takayasu*; Munakata, Koji*; Moyoshi, Taketo*; Kuroda, Tetsuya*; Oikawa, Kenichi; et al.

JPS Conference Proceedings (Internet), 8, p.036018_1 - 036018_6, 2015/09

https://doi.org/10.7566/JPSCP.8.036018

Instrument design and performance evaluation of a new single crystal neutron diffractometer SENJU at J-PARC

Oikawa, Kenichi; Kawasaki, Takuro; Ohara, Takashi; Kiyanagi, Ryoji; Kaneko, Koji; Tamura, Itaru; Nakamura, Tatsuya; Harada, Masahide; Nakao, Akiko*; Hanashima, Takayasu*; et al.

JPS Conference Proceedings (Internet), 1, p.014013_1 - 014013_5, 2014/03

https://doi.org/10.7566/JPSCP.1.014013

A new single crystal time-of-flight neutron diffractometer has been installed at BL18 of the Materials and Life Science Experimental Facility of J-PARC. The diffractometer "SENJU" was designed for precise crystal and magnetic structure analyses using a small crystal less than 1.0 mm under multiple extreme environments such as low-temperature and high-magnetic field. The first neutron beam was delivered to the sample position on March 5, 2012. Subsequently, the hardware and software of SENJU have been checked and confirmed that they worked fine. At the same time, diffraction experiments of several organic and inorganic crystals have been done using NaCl, C12A7, and so on. In these measurements, Bragg reflections in the high-Q region (d-spacing 0.5 ) were clearly observed and analyzed successfully. In this presentation, we will show the instrument design and performance evaluation of SENJU in detail.

The H-Invitational Database (H-InvDB); A Comprehensive annotation resource for human genes and transcripts

Yamasaki, Chisato*; Murakami, Katsuhiko*; Fujii, Yasuyuki*; Sato, Yoshiharu*; Harada, Erimi*; Takeda, Junichi*; Taniya, Takayuki*; Sakate, Ryuichi*; Kikugawa, Shingo*; Shimada, Makoto*; et al.

Nucleic Acids Research, 36(Database), p.D793 - D799, 2008/01

https://doi.org/10.1093/nar/gkm999

Here we report the new features and improvements in our latest release of the H-Invitational Database, a comprehensive annotation resource for human genes and transcripts. H-InvDB, originally developed as an integrated database of the human transcriptome based on extensive annotation of large sets of fulllength cDNA (FLcDNA) clones, now provides annotation for 120 558 human mRNAs extracted from the International Nucleotide Sequence Databases (INSD), in addition to 54 978 human FLcDNAs, in the latest release H-InvDB. We mapped those human transcripts onto the human genome sequences (NCBI build 36.1) and determined 34 699 human gene clusters, which could define 34 057 protein-coding and 642 non-protein-coding loci; 858 transcribed loci overlapped with predicted pseudogenes.

Application of micro-PIXE to quantitative analysis of heavy elements sorbed on minerals

Kozai, Naofumi; Mitamura, Hisayoshi; Onuki, Toshihiko; Sakai, Takuro; Sato, Takahiro; Oikawa, Masakazu*

Nuclear Instruments and Methods in Physics Research B, 231(1-4), p.530 - 535, 2005/04

https://doi.org/10.1016/j.nimb.2005.01.112

Applicability of micro-PIXE analysis to quantitative evaluation of heavy elements sorbed on minerals was investigated to get better understanding of sorption and distribution of heavy elements onto mixture of minerals in soil. For this, external standards, that is, heavy element-sorbing minerals of uniform shape and size, were analyzed by micro-PIXE. It was found that such external standards were available to quantitative evaluation by micro-PIXE though their applicability may be limited.

A New single crystal neutron diffractometer SENJU at J-PARC

Oikawa, Kenichi; Kaneko, Koji; Tamura, Itaru; Ohara, Takashi; Kawasaki, Takuro; Kimura, Hiroyuki*; Noda, Yukio*; Takahashi, Miwako*; Kiyotani, Tamiko*; Kiyanagi, Ryoji*; et al.

no journal, , 

A new single crystal neutron diffractometer SENJU is now under construction at a high pace in MLF at J-PARC. SENJU will realize precise structure analysis under the combined extreme conditions such as high-magnetic field and low temperature. The construction will be completed at the end of 2010 fiscal year, and has aimed at the first beam acceptance before the summer of 2011. In the presentation, detailed instrument specs will be introduced, and a concrete sample environment etc. will be described.

A New time-of-flight single crystal diffractometer SENJU at J-PARC

Oikawa, Kenichi; Ohara, Takashi*; Kiyanagi, Ryoji; Kawasaki, Takuro; Tamura, Itaru; Kaneko, Koji; Nakamura, Tatsuya; Sakasai, Kaoru; Nakao, Akiko*; Hanashima, Takayasu*; et al.

no journal, , 

SENJU, named after the thousand armed Goddess of Mercy, is a single crystal time-of-flight Laue diffractometer proposed to the MLF at J-PARC. The diffractometer is dedicated for precise crystal and magnetic structure analyses under the combined extreme conditions using a small sample less than 1 . TOF-Laue technique coupled with wide area 2D detectors enables the efficient measurements and improves the completeness of the data. A WLSF-type scintillator detector developed for iBIX was modified to meet the requirements of SENJU. Although the construction schedule has been delayed because of the earthquake, on-beam commissioning will start in 2012.

SENJU; A New time-of-flight single crystal neutron diffractometer at J-PARC

Kawasaki, Takuro; Oikawa, Kenichi; Tamura, Itaru; Ohara, Takashi; Kaneko, Koji; Kimura, Hiroyuki*; Kiyanagi, Ryoji*; Takahashi, Miwako; Kiyotani, Tamiko*; Arai, Masatoshi; et al.

no journal, , 

SENJU is a new single crystal diffractometer for spallation neutron source in Materials and Life Science Experimental Facility (MLF) at Japan Photon Accelerator Research Complex (J-PARC). It is currently under construction and is scheduled to be complete by spring 2011. The diffractometer is esigned to perform diffraction experiment under various environmental conditions, and the crystal and magnetic structure of materials whose lattice constants up to 50 will be studied. SENJU also shed light on the superlattice reflection or diffuse scattering in the reciprocal lattice space to analyze the local structures as well as phase transitions of the materials. At the beginning, the diffractometer will have 31 two-dimensional scintillation detectors to observe the wide area of reciprocal lattice space by one measurement. Various sample environments will be provided, such as cryogenic cooling and magnetic field.

SENJU; A New time-of-flight single crystal neutron diffrantometer at J-PARC

Kawasaki, Takuro; Oikawa, Kenichi; Tamura, Itaru; Ohara, Takashi; Kaneko, Koji; Nakamura, Tatsuya; Sakasai, Kaoru; Kimura, Hiroyuki*; Kiyanagi, Ryoji*; Takahashi, Miwako; et al.

no journal, , 

no abstracts in English

Structure analyses on the new TOF neutron single crystal diffractometer, SENJU

Kiyanagi, Ryoji; Ohara, Takashi*; Kawasaki, Takuro; Oikawa, Kenichi; Tamura, Itaru; Kaneko, Koji; Nakao, Akiko*; Hanashima, Takayasu*; Munakata, Koji*; Kimura, Hiroyuki*; et al.

no journal, ,