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Sc
)
O
(0 
x 0.2) hexagonal ferriteMaruyama, Kenichi*; Tanaka, Seiya*; Kiyanagi, Ryoji; Nakao, Akiko*; Moriyama, Kentaro*; Ishikawa, Yoshihisa*; Amako, Yasushi*; Iiyama, Taku*; Futamura, Ryusuke*; Utsumi, Shigenori*; et al.
Journal of Alloys and Compounds, 892, p.162125_1 - 162125_8, 2022/02
Times Cited Count：2 Percentile：8.82(Chemistry, Physical)Sc)O single crystalsUtsumi, Shigenori*; Tanaka, Seiya*; Maruyama, Kenichi*; Amako, Yasushi*; Kiyanagi, Ryoji; Nakao, Akiko*; Moriyama, Kentaro*; Ishikawa, Yoshihisa*; 9 of others*
ACS Omega (Internet), 5(38), p.24890 - 24897, 2020/09
Times Cited Count：5 Percentile：18.13(Chemistry, Multidisciplinary)Fabricating large, high-crystalline-quality single-crystal samples of hexagonal ferrite Ba(FeSc)O is the first important step to elucidating its helimagnetic structure and developing it for further applications. In this study, single crystals of Ba(FeSc)O of various Sc concentrations 
were successfully grown by the spontaneous crystallization method using Na
O-FeO
flux. X-ray diffraction and elemental analysis revealed that the obtained crystals were composed of single-phase Ba(FeSc)O of high crystalline quality. The temperature dependence of magnetization and the magnetization curves at 77 K of the = 0.128 crystal exhibited behavior characteristics of helimagnetism. Neutron diffraction measurements of the = 0.128 crystal exhibited magnetic satellite reflection peaks below 211K, proving evidence that Ba(FeSc)O behaves as a helimagnetic material.
Sakasai, Kaoru; Sato, Setsuo*; Seya, Tomohiro*; Nakamura, Tatsuya; To, Kentaro; Yamagishi, Hideshi*; Soyama, Kazuhiko; Yamazaki, Dai; Maruyama, Ryuji; Oku, Takayuki; et al.
Quantum Beam Science (Internet), 1(2), p.10_1 - 10_35, 2017/09
Neutron devices such as neutron detectors, optical devices including supermirror devices and 
He neutron spin filters, and choppers are successfully developed and installed at the Materials Life Science Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC), Tokai, Japan. Four software components of MLF computational environment, instrument control, data acquisition, data analysis, and a database, have been developed and equipped at MLF. MLF also provides a wide variety of sample environment options including high and low temperatures, high magnetic fields, and high pressures. This paper describes the current status of neutron devices, computational and sample environments at MLF.
Nakatani, Takeshi; Inamura, Yasuhiro; Ito, Takayoshi*; Moriyama, Kentaro*
Proceedings of 11th New Opportunities for Better User Group Software (NOBUGS 2016) (Internet), p.76 - 79, 2016/10
The public beamlines in MLF, J-PARC carry out many kinds of measurements and produce huge experimental data by users. It is important to be user-friendly and automated control software for efficient measurements. We have developed the MLF standard instrument control software framework "IROHA2". IROHA2 consists of the device control server to control and monitor each device, the instrument management server to authenticate a user, manage a measurement and configure an instrument setup, the sequence management server to do an automatic measurement and the integrate control server to unify instrument control and monitoring. Because each software component of IROHA2 has a web interface, we are able to use its all functions under multi-platform environment via a web browser. IROHA2 is also connected to and cooperated with several other systems which are the experimental status system, the MLF integrated authentication system and the MLF business database.
Nakatani, Takeshi; Inamura, Yasuhiro; Moriyama, Kentaro; Ito, Takayoshi*; Muto, Suguru*; Otomo, Toshiya*
JPS Conference Proceedings (Internet), 1, p.014010_1 - 014010_4, 2014/03
In MLF, J-PARC 18 neutron experimental instruments have already been under operation and various measurements are carried out by many users. These instruments are composed of neutron detectors, sample environment and neutron optics devices. The signals from these components and the neutron source are transformed into the digital signals by the DAQ electronics and recorded as the event data with the time in the DAQ computers by "DAQ Middleware". The DAQ system produces the enormous measurement event data (
GB) under various measurement conditions. Simultaneously, the measurement meta-data indicating each measurement condition is recorded in XML format by the MLF control software framework "IROHA". These measurement event data and meta-data are collected in the MLF common storage and cataloged by the MLF Experimental Database based on the commercial XML database. The database system provides the web interface for the experiment data management and the remote data analysis for users.
Ise, Hideo*; Izaki, Makoto*; Oishi, Haruo*; Mori, Seiji*; Ako, Kentaro*; Moriyama, Hisashi*; Kagaya, Hiroaki*; Kobayashi, Masami*; Taguchi, Ko*; Shibanuma, Kiyoshi
FAPIG, (159), p.10 - 14, 2001/11
no abstracts in English
Nakatani, Takeshi; Takahashi, Ryuta*; Moriyama, Kentaro*
no journal, ,
We carry out the experimental control with the standard instrument control software framework "IROHA2" in MLF, J-PARC. We have developed the IROHA2 device modules for the 7T magnet and the Nb furnace which are the common sample environment devices in MLF. The 7T magnet is the device to make a strong magnetic field to be applied on the sample with the superconducting magnet. The 7T magnet is the complex device composed of the power supply to make a current to be applied on the electric magnet, the refrigerators for the sample and the magnet, the helium liquid level gauge and the rotation controller for the sample. The Nb furnace is the device which make the sample a high temperature by an electric heat. The Nb furnace is monitored with reading out the status from the programmable logic controller and the recorder. Because we have developed the software modules for these devices, users can do an experiment easily integrated the devices and the data acquisition system in the instrument.
Nakatani, Takeshi; Inamura, Yasuhiro; Moriyama, Kentaro*
no journal, ,
The instrument control software framework "IROHA2" have been introduced and used in several neutron instruments at MLF, J-PARC. IROHA2 consists of several severs, which are the device control, the instrument management, the sequence management and the integrate control. Users cooperate to use these servers to carry out their experiments with a web browser. By the development since last year, new features are implemented to IROHA2 as follows: (1) Real-time data processing interface on the device control server with a distributed messaging middleware, (2) Flexible web user interfaces for automatic measurements on the sequence management server, (3) Remote experimental status monitoring system on the integrate control server, which is access controlled by the MLF integrate authorization system. We will report the implementation status and future plans of IROHA2.
Nakatani, Takeshi; Inamura, Yasuhiro; Ito, Takayoshi*; Okazaki, Nobuo*; Moriyama, Kentaro*; Kasai, Satoshi*; Seya, Tomohiro*; Yasu, Yoshiji*; Oshita, Hidetoshi*; Otomo, Toshiya*
no journal, ,
no abstracts in English
Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*; Tamura, Itaru; Kaneko, Koji
no journal, ,
Kiyanagi, Ryoji; Ishikawa, Yoshihisa*; Ohara, Takashi; Moriyama, Kentaro*; Munakata, Koji*; Nakao, Akiko*; Sakakura, Terutoshi*; Kimura, Hiroyuki*
no journal, ,
SENJU is a single crystal neutron diffractometer at Material and Life science experimental Facility (MLF) in J-PARC. In this study, a heavy neutron absorbing material has been measured in order to evaluate the feasibility of qualitative structure analyses on such material. The result showed that with some tricks in the measurement and treatment on the measured data, quantitative structure analyses has been demonstrated to be feasible.
Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Moyoshi, Taketo*; Moriyama, Kentaro*; Hanashima, Takayasu*; Kuroda, Tetsuya*
no journal, ,
Hasemi, Hiroyuki; Nakatani, Takeshi*; Inamura, Yasuhiro; Moriyama, Kentaro*
no journal, ,
no abstracts in English
Kiyanagi, Ryoji; Ohara, Takashi; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*
no journal, ,
no abstracts in English
Kiyanagi, Ryoji; Ohara, Takashi; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*
no journal, ,
no abstracts in English
Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*; Tamura, Itaru; Kaneko, Koji
no journal, ,
Hasemi, Hiroyuki; Inamura, Yasuhiro; Moriyama, Kentaro*
no journal, ,
no abstracts in English
Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Ishikawa, Yoshihisa*; Moriyama, Kentaro*
no journal, ,
Kiyanagi, Ryoji; Ohara, Takashi; Ishikawa, Yoshihisa*; Munakata, Koji*; Moriyama, Kentaro*; Nakao, Akiko*; Nakamura, Tatsuya; To, Kentaro; Sakasai, Kaoru; Hosoya, Takaaki
no journal, ,
Kiyanagi, Ryoji; Ohara, Takashi; Ishikawa, Yoshihisa*; Munakata, Koji*; Moriyama, Kentaro*; Nakao, Akiko*
no journal, ,
