Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Seito, Hajime; Ichikawa, Tatsuya*; Hanaya, Hiroaki; Sato, Yoshishige*; Kaneko, Hirohisa; Haruyama, Yasuyuki; Watanabe, Hiroshi*; Kojima, Takuji
Radiation Physics and Chemistry, 78(11), p.961 - 965, 2009/11
Times Cited Count：3 Percentile：24.47(Chemistry, Physical)no abstracts in English
Nagata, Hiroshi*; Honda, Teruyuki*; Iwatsuki, Teruki; Mizuno, Takashi
no journal, ,
Trace element concentrations in sedimentary rocks were analyzed to estimate migration process at chemical weathering and carbonate filling part. The results show that the no migration was observed at chemical weathering part. On the oter hand, U and Th enrich at calcite filling part. The carbonate ligand generation possibly controls migration processes.
(10) reference monitor for field calibration of personal neutron dosemetersTsujimura, Norio; Yoshida, Tadayoshi; Nunomiya, Tomoya*; Aoyama, Kei*
no journal, ,
no abstracts in English
Kawasuso, Atsuo; Maekawa, Masaki; Betsuyaku, Kiyoshi*
no journal, ,
no abstracts in English
Hashimoto, Mie; Fukaya, Yuki; Kawasuso, Atsuo; Ichimiya, Ayahiko
no journal, ,
no abstracts in English
Kawamura, Hiroshi
no journal, ,
In Japan, the reactors with which the radioisotopes have been producted, are JRR-3, JRR-4 and JMTR owned by JAEA. JMTR aims at re-operation from 2011year and is under the refurbishment presently. As one of the expansion of industry use, the production of 99Mo of medical RI will be considered with JMTR. In this time, the status and future plan of RI production with JRR-3, JRR-4 and JMTR will be presented.
ssbauer spectra of uranium oxysulfideMasaki, Nobuyuki; Nakada, Masami; Akabori, Mitsuo; Arai, Yasuo; Nakamura, Akio; Sato, Nobuaki*
no journal, ,
no abstracts in English
Hashimoto, Mie; Fukaya, Yuki; Kawasuso, Atsuo; Ichimiya, Ayahiko
no journal, ,
no abstracts in English
-(Au,Ag) surface using reflection high-energy positron diffractionFukaya, Yuki; Matsuda, Iwao*; Hashimoto, Mie; Narita, Hisashi*; Kawasuso, Atsuo; Ichimiya, Ayahiko
no journal, ,
no abstracts in English
Fukaya, Yuki; Hashimoto, Mie; Kawasuso, Atsuo; Ichimiya, Ayahiko
no journal, ,
no abstracts in English
Yanagisawa, Kazuaki; Kume, Tamikazu
no journal, ,
Cost benefit effect (CBE) is described as a value added shipment of products divided by a total amount of investments funded up to the creation of market for the products. Economic scale of radiation application is defined as money based annual shipment of products those were partly or wholly utilized the technology of radiation during a fabrication process. As a result of our study that was supported financially by the Cabinet, the economic scale of nuclear energy is revealed to be 4,741 billion yen. This energy is considered to be useful for establishment of energy infrastructure in our country. A total of 50,000 peoples are working in 9 electric power companies. On the other hand, an economic scale of radiation application is 4,112 billion yen. The sum of the two is called as nuclear utilization having economic scale as much as 8,853 billion yen, where the ratio between nuclear energy and radiation application is 54% vs. 46%. In our previous study, it was 61% vs. 39%. This is like wheels of car (Japanese economy), supporting the base of economic development. Nuclear utilization is corresponded to 1.8% of Gross Domestic Products.
Yamashita, Shinichi; Katsumura, Yosuke; Lin, M.; Maeyama, Takuya*; Muroya, Yusa*; Murakami, Takeshi*
no journal, ,
no abstracts in English
OH yields with fluorescent probe, 1; Investigation into reaction mechanism and reactivity toward water decomposition radicals of coumarin-3-carboxylic acidMaeyama, Takuya*; Yamashita, Shinichi; Baldacchino, G.*; Muroya, Yusa*; Taguchi, Mitsumasa; Kimura, Atsushi; Katsumura, Yosuke
no journal, ,
no abstracts in English
Maeyama, Takuya*; Yamashita, Shinichi; Baldacchino, G.*; Taguchi, Mitsumasa; Kimura, Atsushi; Katsumura, Yosuke; Murakami, Takeshi*
no journal, ,
no abstracts in English
Sawada, Shinichi; Kawasuso, Atsuo; Maekawa, Masaki; Suzuki, Akihiro*; Terai, Takayuki*; Maekawa, Yasunari
no journal, ,
Positron annihilation lifetime spectroscopy (PALS) measurements were performed on polymer electrolyte membranes (PEMs) synthesized by radiation-induced graft polymerization of styrene into crosslinked-polytetrafluoroethylene (cPTFE) films and subsequent sulfonation. The base cPTFE and polystyrene-grafted films were also measured as references. The cPTFE based PEM was found to have free-volume holes with different radius of 0.28-0.30 nm and 0.44-0.45 nm. The larger holes may be located in PTFE amorphous regions, while the smaller ones are considered to exist in both PTFE crystallites and poly(styrene sulfonic acid) grafts containing no water.
Ishii, Satomi; Suzui, Nobuo; Ishioka, Noriko; Kawachi, Naoki; Ito, Sayuri; Otake, Norikuni*; Oyama, Takuji*; Fujimaki, Shu
no journal, ,
no abstracts in English
Takahashi, Hiroyuki*; Katsumura, Yosuke; Lin, M.; Muroya, Yusa*; Kumagai, Yuta; Kudo, Hisaaki*
no journal, ,
no abstracts in English
Lin, M.; Katsumura, Yosuke; Muroya, Yusa*; Fu, H.*; Takahashi, Hiroyuki*
no journal, ,
This study is one in a series work aiming at the estimation of the radiolytic yields of water decomposition products in elevated temperatures and supercritical water. OH radical could be the most important oxidizing species that is assumed to be closely related to the corrosion of the structural materials in nuclear reactors. The studies of OH radical at elevated temperatures or supercritical water are thus essential.
Fu, H.*; Katsumura, Yosuke; Lin, M.; Muroya, Yusa*; Hata, Kuniki*
no journal, ,
Carnosine (beta-alanyl-L-histidine) is one of the most abundant (1-20 mM) nitrogenous compounds present in the non-protein fraction of vertebrate skeletal muscle and certain other tissues. Some related compounds, i.e. anserine (beta-alanyl-1-methyl-L-histidine) and homocarnosine (
-aminobutyryl- L-histidine) have been reported to be present at millimolar concentrations in several mammalian tissues, including skeletal muscle and brain. It has been proved that carnosine has excellent potential to act as a natural antioxidant. It is an efficient singlet-oxygen scavenger and protects phage against -irradiation which gives rise to oxidative DNA damage. As of today, the research for carnosine and its related compounds mainly focuses on the biological effect. To gain a better understanding on the antioxidative role, pulse radiolysis experiments were performed on carnosine and its related compounds.
H
Zgardzinska, B.*; Hirade, Tetsuya; Goworek, T.*
no journal, ,
Time dependence of positronium (Ps) formation yields were measured for n-CH at 120 K and 170 K. Just after elevating the temperature from 120 K to 170 K, Ps formation yield increased, probably because the change of diffusion length of positrons, but decreased gradually afterword. This decrement is probably caused by the change of diffusion length of electrons. The mean distance between trapped electrons at the saturated situation is about several 10 nm and it is probably indicating that the diffusion length of electrons.
