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Daido, Hiroyuki; Suzuki, Yoji; Kawachi, Tetsuya; Fukuda, Takeshi*; Nakagiri, Toshio; Kaku, Masanori*; Kubodera, Masakazu*; Pirozhkov, A. S.
Proceedings of SPIE, Vol.8849, p.884908_1 - 884908_11, 2013/09
no abstracts in English
Sakaki, Hironao; Nishiuchi, Mamiko; Hori, Toshihiko; Bolton, P.; Yogo, Akifumi; Katagiri, Masaki*; Ogura, Koichi; Sagisaka, Akito; Pirozhkov, A. S.; Orimo, Satoshi; et al.
Applied Physics Express, 3(12), p.126401_1 - 126401_3, 2010/11
Times Cited Count：8 Percentile：34.38(Physics, Applied)Many applications of laser-accelerated ions will require beamlines with diagnostic capability for validating simulations and machine performance at the single bunch level as well as for the development of controls to optimize machine performance. We demonstrated prompt, in-line, single bunch transverse profile and energy spectrum detection using a thin luminescent diagnostic and scintillator-based time-of-flight spectrometer simultaneously. The Monte Carlo code, particle and heavy ion transport code systems (PHITS) simulation is shown to be reasonably predictive at low proton energy for the observed transverse profiles measured by the thin luminescent monitor and also for single bunch energy spectra measured by time-of-flight spectrometry.
Sakasai, Kaoru; To, Kentaro; Nakamura, Tatsuya; Harjo, S.; Moriai, Atsushi; Ito, Takayoshi; Abe, Jun; Aizawa, Kazuya; Soyama, Kazuhiko; Katagiri, Masaki*; et al.
Proceedings of 19th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-19) (CD-ROM), 5 Pages, 2010/07
Neutron detectors for Engineering Materials Diffractometer, named TAKUMI, at J-PARC have been developed under international cooperation between Rutherford Appleton Laboratory (RAL) and Japan Atomic Energy Agency (JAEA), and installed successfully at the end of March 2009. The detector size was 805
1370217 mm which was about 1.5 times larger than those installed in ENGIN-X, ISIS facility, RAL. Neutrons are detected based on a nuclear reaction of 
Li(n, 
)
H using ZnS/LiF scintillator. The data acquisition electronics and decoding module were also manufactured. The overall performances of the detectors have been tested using various sources. The results showed that the detectors had good performances such as a position resolution of 3 mm, a neutron detection efficiency of more than 50% at 1 
-neutrons, and a 
-ray sensitivity of less than 10
at 1.3 MeV--ray by 
Co source, which met the requirements of TAKUMI, and they will be presented at the meeting.
Toyama, Takeshi*; Arakawa, Dai*; Hiramatsu, Shigenori*; Igarashi, Susumu*; Lee, S.*; Matsumoto, Hiroshi*; Odagiri, Junichi*; Tejima, Masaki*; Tobiyama, Makoto*; Hashimoto, Yoshinori*; et al.
Proceedings of 1st International Particle Accelerator Conference (IPAC '10) (Internet), p.981 - 983, 2010/05
Experiences of operating BPM's during beam commissioning at the J-PARC MR are reported. The subjects are: (1) bug report, statistics and especially the effect of a beam duct step, (2) position resolution estimation (
30 micrometers with 1 sec averaging), (3) beam based alignment.
; Neutron diffraction and scattering studyNakamura, Hiroyuki*; Yamasaki, Tomoaki*; Giri, S.*; Imai, Hideto*; Shiga, Masayuki*; Kojima, Kenji*; Nishi, Masakazu*; Kakurai, Kazuhisa*; Metoki, Naoto
Journal of the Physical Society of Japan, 69(9), p.2763 - 2766, 2000/09
Times Cited Count：61 Percentile：87(Physics, Multidisciplinary)no abstracts in English
Sakasai, Kaoru; Harjo, S.; Nakamura, Tatsuya; Moriai, Atsushi; Katagiri, Masaki; Soyama, Kazuhiko; Rhodes, N.*; Schooneveld, E.*
no journal, ,
no abstracts in English
Aizawa, Kazuya; Harjo, S.; Utsumi, Wataru; Ito, Takayoshi; Moriai, Atsushi; Abe, Jun; Nakatani, Takeshi; Sakasai, Kaoru; Nakamura, Tatsuya; Iwahashi, Takaaki; et al.
no journal, ,
no abstracts in English
Sakasai, Kaoru; Nakamura, Tatsuya; Moriai, Atsushi; Harjo, S.; Ito, Takayoshi; Abe, Jun; Aizawa, Kazuya; Katagiri, Masaki; Soyama, Kazuhiko; Rhodes, N.*; et al.
no journal, ,
no abstracts in English
Sakasai, Kaoru; Nakamura, Tatsuya; Harjo, S.; Ito, Takayoshi; Abe, Jun; Aizawa, Kazuya; Katagiri, Masaki*; Soyama, Kazuhiko; Rhodes, N.*; Schooneveld, E.*
no journal, ,
no abstracts in English
