Quantum beams open up the future, 3

Oyama, Yukio; Ikeda, Yujiro; Arai, Masatoshi; Morii, Yukio

Nihon Genshiryoku Gakkai-Shi ATOMO, 51(1), p.14 - 19, 2009/01

http://ci.nii.ac.jp/naid/10024656573

The beam commissioning of the J-PARC facilities of which the construction was started in 2001 is now progressed toward completion at the end of JFY2008. Of the J-PARC facilities, especially the pulsed neutron source with the world highest performance is able to open a new era of neutron application research. In this article, the outline of J-PARC, the pulsed neutron source which will start the user operation on December 2008, and their neutron instruments which is under construction are introduced. The neutron research is one of the important applications of quantum beam technology and expected to expand to broad research area such as bio-science, materials science, industrial use, etc. by start of J-PARC utilization. The latest achievement of neutron research mostly conducted at the JRR-3 research reactor in operation and future prospect are overviewed.

J-PARC and new era of science

Oyama, Yukio

Nuclear Instruments and Methods in Physics Research A, 562(2), p.548 - 552, 2006/06

https://doi.org/10.1016/j.nima.2006.02.139

High Intensity Proton Accelerator Project promoted jointly by Japan Atomic Energy research Institute (JAERI) and High Energy Accelerator Research Organization (KEK), named as J-PARC was started on April 1, 2001. The project was merged from the projects promoted by the both institutes, called Neutron Science Project and Japan Hadron Project, respectively. The accelerator complex of J-PARC consists of three accelerators: 400 MeV Linac, 3 GeV rapid cycle synchrotron and 50 GeV synchrotron, and four major experimental facilities: Material & Life Science Facility, Nuclear & Particle Physics (Hadron) Facility, Neutrino Facility and Nuclear Transmutation Experiment Facility. The present construction phase, Phase-I, excludes nuclear transmutation facility. The accelerators will be completed in 2007 with 200 MeV Linac, and an operation will start. The Neutrino facility will be completed in 2008 and the 200-400 MeV Linac will be constructed in 2008-2010.

Analysis of neutronic experiment on a simulated mercury spallation neutron target assembly bombarded by Giga-electron-Volt protons

Maekawa, Fujio; Meigo, Shinichiro; Kasugai, Yoshimi; Takada, Hiroshi; Ino, Takashi*; Sato, Setsuo*; Jerde, E.*; Glasgow, D.*; Niita, Koji*; Nakashima, Hiroshi; et al.

Nuclear Science and Engineering, 150(1), p.99 - 108, 2005/05

https://doi.org/10.13182/NSE05-A2504

A neutronic benchmark experiment on a simulated spallation neutron target assembly with 1.94, 12 and 24 GeV proton beams conducted by using the AGS accelerator at BNL/US was analyzed to investigate validity of neutronics calculations on proton accelerator driven spallation neutron sources. Monte Carlo particle transport calculation codes NMTC/JAM, MCNPX and MCNP-4A with associated cross section data in JENDL and LA-150 were used for the analysis. As a result, although the overall energy range was encompassed from GeV to meV, i.e., more than 12 orders of magnitude, calculated fast and thermal neutron fluxes agreed approximately within 40 % with the experiments. Accordingly, it was concluded that neutronics calculations with these codes and cross section data were adequate for estimating nuclear properties in spallation neutron sources.

Current status of the AGS spallation target experiment

Nakashima, Hiroshi; Takada, Hiroshi; Kasugai, Yoshimi; Meigo, Shinichiro; Maekawa, Fujio; Kai, Tetsuya; Konno, Chikara; Ikeda, Yujiro; Oyama, Yukio; Watanabe, Noboru; et al.

Proceedings of 6th Meeting of the Task Force on Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-6), (OECD/NEA No.3828), p.27 - 36, 2004/00

no abstracts in English

Development of high intensity pulsed neutron source and its application

Oyama, Yukio

Radioisotopes, 51(5), p.219 - 227, 2002/05

https://doi.org/10.3769/radioisotopes.51.219

no abstracts in English

Status of spallation neutron source program in high intensity proton accelerator project

Oyama, Yukio; Ikeda, Susumu*; Joint Project Team of JAERI and KEK

JAERI-Conf 2001-002, p.19 - 26, 2001/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2001-002-Part1.pdf

no abstracts in English

Investigation on prediction capability of nuclear design parameters for gap configulation in ITER through analysis of the FNS gap streaming experiment

Maekawa, Fujio; Konno, Chikara; Wada, Masayuki*; Kasugai, Yoshimi; Oyama, Yukio; Uno, Yoshitomo; Maekawa, Hiroshi; Ikeda, Yujiro

Journal of Nuclear Science and Technology, 37(Suppl.1), p.263 - 267, 2000/03

https://doi.org/10.1080/00223131.2000.10874887

no abstracts in English

Recent progress in design sutdy of Japanese spallation neutron source

Watanabe, Noboru; Teshigawara, Makoto; Kai, Tetsuya; Harada, Masahide; Sakata, Hideaki*; Ikeda, Yujiro; Kaminaga, Masanori; Hino, Ryutaro; Oyama, Yukio

Proceedings of 8th International Conference on Nuclear Engineering (ICONE-8) (CD-ROM), p.12 - 0, 2000/00

no abstracts in English

Benchmark experiment on vanadium with D-T neutrons and validation of evaluated nuclear data libraries by analysis of the experiment

Maekawa, Fujio; Kasugai, Yoshimi; Konno, Chikara; Murata, Isao*; Kokooo*; Wada, Masayuki*; Oyama, Yukio; Ikeda, Yujiro; Takahashi, Akito*

Journal of Nuclear Science and Technology, 36(3), p.242 - 249, 1999/03

https://doi.org/10.3327/jnst.36.242

no abstracts in English

A Study of existing experimental data and validation process for evaluated high energy nuclear data; Report of task force on integral test for JENDEL high energy file in japanese nuclear data committee

Oyama, Yukio; *; Watanabe, Yukinobu*; Kawano, Toshihiko*; Numajiri, M.*; Ueki, Kotaro*; *; Yamano, Naoki*; Kosako, Kazuaki*; *; et al.

JAERI-Review 98-020, 130 Pages, 1998/11

JAERI-Review-98-020.pdf:6.4MB

no abstracts in English