Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kaneko, Fumitoshi*; Kawaguchi, Tatsuya*; Radulescu, A.*; Iwase, Hiroki*; Morikawa, Toshiaki*; Takata, Shinichi; Nishiura, Masayoshi*; Hou, Z.*
Review of Scientific Instruments, 90(9), p.093906_1 - 093906_6, 2019/09
Times Cited Count：5 Percentile：24.95(Instruments & Instrumentation)
OTanigawa, Hisashi; Tanaka, Satoru*; Enoeda, Mikio; Akiba, Masato
Journal of Nuclear Materials, 329-333(2), p.1291 - 1294, 2004/08
Times Cited Count：4 Percentile：28.79(Materials Science, Multidisciplinary)In order to elucidate the interaction of hydrogen isotopes with irradiation defects, infrared absorption spectroscopy was conducted for a single crystal of LiO. Using FT-IR, O-D stretching vibration from the bulk LiO was observed under deutron irradiation. Under and after the irradiation, several peaks were observed in the O-D stretching vibration region and these peaks had different dependence on conditions of the irradiation. From the observed behaviour of the peaks, it was suggested that most of the irradiated deutron existed in LiO without O-D bonding because of interaction with the defects.
Takahashi, Shuichi*; Yoshida, Masaru; Asano, Masaharu; Notomi, Mitsuo*; Nakagawa,Tsutomu*
Nuclear Instruments and Methods in Physics Research B, 217(3), p.435 - 441, 2004/05
Times Cited Count：15 Percentile：67.20(Instruments & Instrumentation)Various characterization were used to study the effect of heavy ion irradiation on a poly(ethylen terephthalate)(PET) membrane. My study was followed using some dynamic and thermal measurements with the aim to undestand the chemical change in the material by heavy ion irradiation. The anyalyese included DMA, tensile measurement, DSC and micro-FT-IR. The overall structure change in the PET polymer was investigated as a function of the Xe ion fluence in the range from 3
10
to 310
ions/cm
. Based on some mechanical measurements such as the tensile analysis and dynamic test, the heavy ion irradiated PET membranes exhibited a significant change in cross-linking. I believe that the secondary electron induced by collision between the irradiated ion and the constituent atoms of the membrane material form the cross-linking. The polymer chain scission and structure degradations are expected to result at higher ion fluence. Also, a slight change in the structure such as amorphization has been shown by DSC and the micro-FT-IR test.
Hiroki, Akihiro*; Maekawa, Yasunari; Yoshida, Masaru; Kubota, Kenji*; Katakai, Ryoichi*
Polymer, 42(5), p.1863 - 1867, 2000/12
Times Cited Count：42 Percentile：79.64(Polymer Science)no abstracts in English
Sugimoto, Masaki; Kudo, Hisaaki; Sasuga, Tsuneo; Seguchi, Tadao; Hama, Yoshimasa*; Hamanaka, Kenichi*; Matsumoto, Hideya*
JAERI-Conf 97-003, p.269 - 272, 1997/03
no abstracts in English
; Yamaki, Daiju; Noda, Kenji
Journal of Nuclear Materials, 248, p.121 - 127, 1997/00
Times Cited Count：9 Percentile：59.37(Materials Science, Multidisciplinary)no abstracts in English
Yaita, Tsuyoshi; Tachimori, Shoichi
Radiochimica Acta, 73(1), p.27 - 33, 1996/00
no abstracts in English
Hama, Yoshimasa*; ; Hamanaka, Kenichi*; Matsumoto, Hideya*; Kudo, Hisaaki; Sasuga, Tsuneo; Seguchi, Tadao;
Proceedings of of the Yayoi Symposium on Ion-Beam Radiation Chemistry; NIRS-M-101, HIMAC-007, 0, p.9 - 12, 1994/00
no abstracts in English
Matsumoto, Hideya*; ; Hama, Yoshimasa*; Kudo, Hisaaki; Sasuga, Tsuneo; Seguchi, Tadao
DEI-93-153, 0(0), p.1 - 8, 1993/12
no abstracts in English
Kimura, Takaumi; J.G.Serrano*; ; ; Takeishi, Hideyo
Radiochimica Acta, 58-59, p.173 - 178, 1992/00
no abstracts in English
; Kimura, Takaumi
Journal of Nuclear Science and Technology, 28(8), p.780 - 783, 1991/08
no abstracts in English
Kimura, Takaumi;
3rd Int. Symp. on Advanced Nuclear Energy Research; Global Environment and Nuclear Energy, 6 Pages, 1991/00
no abstracts in English
ion implantation with thermal D doping in silica by FTIR and ESR spectroscopySaeki, Masakatsu; Ono, Shinichi; Tachikawa, Enzo; ; ;
J.Am.Ceram.Soc., 68(3), p.151 - 155, 1985/00
Times Cited Count：8 Percentile：60.91(Materials Science, Ceramics)no abstracts in English
Kawaguchi, Munemichi
no journal, ,
This study presents the fundamental research on the thermal decomposition behavior of sodium hydride (NaH) in FY2021. This study on the thermal decomposition behavior of NaH was carried out using TG-DTA and FT-IR for the decommissioning of the cold trap in Monju. Due to the weak ionic bonding of Na-H in NaH, the hydrogen is enable to move easily at close to 565K. Upon further heating, the hydrogen desorbs by the thermal decomposition. A simple model using each kinetic rate equations (
, 
, 
) can give us the quantitative evaluation of the thermal decomposition behavior of NaH, which tended to overestimated the Na evaporation.
Takahatake, Yoko; Watanabe, So; Nakamura, Masahiro
no journal, ,
Contaminated bath salts, such as LiCl-KCl and NaCl-2CsCl, are generated by pyroprocessing. The halide salts should be decontaminated in advance with disposal. Since Cl cause corrosion of equipment, pipes and containers, Cl in the wastes has to be chemically stabilized. In this study, we focused on chlorapatite which is natural mineral containing Cl, and synthesis of the chlorapatite and verification Cl stability in the products were conducted. Regents as Ca and P sources, and CsCl were mixed, and then heated with various temperature conditions. Leaching test on the products with pure water was carried out. A part of Cl in the products was remained after the test. FT-IR analysis on the product suggested formation of P-Cl bonds, and the formation must be one of the encapsulation mechanisms of Cl inside the natural ore.
