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Yamashita, Keishiro*; Komatsu, Kazuki*; Ohara, Takashi; Munakata, Koji*; Irifune, Tetsuo*; Shimmei, Toru*; Sugiyama, Kazumasa*; Kawamata, Toru*; Kagi, Hiroyuki*
High Pressure Research, 42(1), p.121 - 135, 2022/03
Times Cited Count：3 Percentile：56.47(Physics, Multidisciplinary)Kusama, Yoshinori; Ishikawa, Masao; Takechi, Manabu; Nishitani, Takeo; Morioka, Atsuhiko; Sasao, Mamiko*; Isobe, Mitsutaka*; Krasilnikov, A.*; Kaschuck, Y.*
Proceedings of Plasma Science Symposium 2005/22nd Symposium on Plasma Processing (PSS-2005/SPP-22), p.395 - 396, 2005/00
The energetic neutral particles have been successfully measured with a natural diamond detector in the neutron and 
ray radiation circumstance of the JT-60U deuterium discharges. The diamond detector was covered with polyethylene and lead in order to reduce the neutron and ray background. The shield has shown expected shielding capability. A rapid increase in neutral particles has been observed at the onset of the Toroidal Alfven Eigenmode (TAE) excited by the negative-ion-based neutral beam injection. The energy range of increased neutral particles has agreed well with that predicted from the resonant interaction between the energetic ions and the TAE.
Marushita, Motoharu*; Mitsui, Takaya; Fukuda, Tatsuo; Takahashi, Masamitsu; Inami, Toshiya; Katayama, Yoshinori; Shiwaku, Hideaki; Mizuki, Junichiro
Nuclear Instruments and Methods in Physics Research A, 467-468(Part.1), p.392 - 395, 2001/07
Times Cited Count：4 Percentile：33.81(Instruments & Instrumentation)no abstracts in English
Takahashi, Koji; Komatsuzaki, Manabu*
JAERI-Research 2000-054, 23 Pages, 2001/03
JAERI-Research-2000-054.pdf:1.37MB
no abstracts in English
X-ray diffraction study at SPring-8Watanuki, Tetsu; Shimomura, Osamu; Yagi, Takehiko*; Kondo, Tadashi*; Isshiki, Maiko*
Review of Scientific Instruments, 72(2), p.1289 - 1292, 2001/02
Times Cited Count：82 Percentile：94.13(Instruments & Instrumentation)no abstracts in English
Sakamoto, Keishi; Kasugai, Atsushi; Tsuneoka, Masaki; ; Imai, Tsuyoshi; *; Hayashi, Kenichi*; Mitsunaka, Yoshika*; Hirata, Yosuke*; *; et al.
Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 1, p.441 - 444, 1998/00
no abstracts in English
Proc.1981 INS Int.Symp.on Nuclear Radiation Detectors, p.159 - 177, 1981/00
no abstracts in English
Koike, Masato; Imazono, Takashi; Nagano, Tetsuya*
no journal, ,
Theoretical study have been performed to enhance the diffraction efficiency of diffraction grating at B-K emission (184 eV) spectrum based on new scheme. Critical angle of the gold of the incident light having energy 184 eV is 4.9 
. When the incidence angle is 3.0 and even the condition of total reflection is satisfied the reflectance is 74% due to the large extinction coefficient of 8.4 
10
. However, in the case of carbon, the extinction coefficient is small (7.6 10
) and the critical angle is 7.7. Therefore the reflectance of 93% is achieved. We utilize this phenomenon to diffraction gratings. Then as the result we find the optimum thicknesses of 12 nm and 24 nm for a-C and ta-C layers, respectively. Compared with the case of Au coating their diffraction efficiency is increased in a wide range of 6-10 nm. In particular, it is expected 33% and 80% increases at 183.3 eV for a-C and ta-C, respectively.
