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Journal Articles

Radiation and spintronics

Ieda, Junichi

Hoshasen To Sangyo, (146), p.48 - 52, 2019/06

no abstracts in English

Journal Articles

Experience note of John Rogers Laboratory in Northwestern University

Sekine, Yurina

Hoshasen To Sangyo, (143), p.51 - 54, 2017/12

The author reports experience note of John Rogers laboratory in Northwestern University from January in 2017.

Journal Articles

Research and development using the quantum beams in Japan Atomic Energy Agency

Takeda, Masayasu

Hoshasen To Sangyo, (142), p.34 - 37, 2017/06

no abstracts in English

Journal Articles

Formation of carbon alloys by low-energy ion doping and its application for adsorptive desulfurization

Shimoyama, Iwao

Hoshasen To Sangyo, (141), p.7 - 11, 2016/12

Desulfurization is an indispensable process on hydrogen formation from fossil fuel. Adsorptive desulfurization, alternative to conventional hydrogenation desulfurization, requires development of stable activated carbon adsorbents with high performance. I study dopant dependence on thiophene adsorption for carbon alloys prepared by heteroatom doping using low-energy ion beam. I doped nitrogen and phosphorus as dopants of group 15 elements in graphite surfaces, and clarified that phosphorus is superior in thiophene adsorption to nitrogen, and that the effect of phosphorus is higher with room temperature doping than with high temperature doping by about 10 times. X-ray absorption spectroscopy indicated that local structures around phosphorus sites were different between them. I attribute the high adsorption property to formation of curved phosphorus sites prepared by room temperature doping. Above results suggest that the property of carbon alloy can be controlled by low-energy ion beam.

Journal Articles

Utilization of radiation facilities in Takasaki Advanced Radiation Research Institute under the MEXT grants

Hirota, Koichi

Hoshasen To Sangyo, (139), p.33 - 36, 2015/12

The article describes utilization programs for irradiation facilities for ion beam, $$gamma$$-ray and electron beam in Takasaki Advanced Radiation Research Institute under the MEXT (Ministry of Education, Sports, Culture, Science and Technology) grants. The feature of the facilities and technical support of assistants in the fields of creation of genetic resources, analytical technology, and material development under the grants are introduced. The article also includes recent research activities of development of new flowers, visualization of Li in lithium-ion battery, and development of distortion resistance of fluoro-rubber etc.

Journal Articles

Research and application of positronium chemistry

Hirade, Tetsuya

Hoshasen To Sangyo, (139), p.23 - 28, 2015/12

The researches and the applications of the Positronium Chemistry were introduced. The mechanism of Ps formation in low temperature insulators was clarified by Hirade and it is almost the end of the long, more than half century, period for arguments on Ps formation. Hence almost all of the researchers have been accepting the Spur Reaction Model proposed by Mogensen. Therefore, radiation chemistry researches by use of the Spur Reaction Model, especially the study of excess electrons at the time range of pico-to-nano second and electron mobility, were introduced. It was also introduced that the Free Volume Model is not correct and then the sub-nano meter vacant space, such as the microscopic free volume in polymers, can be studied by just the triplet Ps lifetime. As the latest research for the application, it was introduced that Ps bubble shows oscillation especially in ionic liquids and is expected to be a strong tool to investigate nano-scale properties of ionic liquids.

Journal Articles

Applications of spin-polarized positron beam

Kawasuso, Atsuo

Hoshasen To Sangyo, (139), p.18 - 22, 2015/12

no abstracts in English

Journal Articles

Surface study with positron diffraction

Fukaya, Yuki; Hyodo, Toshio*

Hoshasen To Sangyo, (139), p.13 - 17, 2015/12

no abstracts in English

Journal Articles

A Record of my sabbatical at the University of Washington, Seattle

Watanabe, Shigeki

Hoshasen To Sangyo, (138), p.52 - 54, 2015/06

no abstracts in English

Journal Articles

Modification of cesium absorption in plants and microorganisms by the ion-beam breeding technology

Ono, Yutaka; Hase, Yoshihiro; Sato, Katsuya; Nozawa, Shigeki; Narumi, Issey*

Hoshasen To Sangyo, (138), p.17 - 20, 2015/06

no abstracts in English

Journal Articles

Development of grafted adsorbents for Cs removal from natural water source

Seko, Noriaki; Shibata, Takuya; Kasai, Noboru; Ueki, Yuji; Saiki, Seiichi; Hoshina, Hiroyuki

Hoshasen To Sangyo, (138), p.9 - 12, 2015/06

no abstracts in English

Journal Articles

Application of radiation technology for resolving serious issues related to the nuclear accident in Fukushima

Ito, Hisayoshi

Hoshasen To Sangyo, (138), p.2 - 3, 2015/06

no abstracts in English

Journal Articles

A Report of 8th International Conference on Isotopes and Expo

Kawachi, Naoki

Hoshasen To Sangyo, (138), p.48 - 51, 2015/06

no abstracts in English

Journal Articles

Analysis of movement of radiocesium in a plant body using a gamma-camera

Fujimaki, Shu

Hoshasen To Sangyo, (138), p.25 - 28, 2015/06

no abstracts in English

Journal Articles

Foods being better or worse after $$gamma$$-irradiation

Chiba, Etsuko*; Iizuka, Tomoko*; Ichikawa, Mariko*; Ukai, Mitsuko*; Kikuchi, Masahiro; Kobayashi, Yasuhiko

Hoshasen To Sangyo, (137), p.29 - 32, 2014/12

no abstracts in English

Journal Articles

Development for production of $$^{177}$$Lu and $$^{186}$$Re, $$^{188}$$Re using a research reactor

Hashimoto, Kazuyuki; Fujisaki, Saburo*

Hoshasen To Sangyo, (136), p.17 - 21, 2014/06

no abstracts in English

Journal Articles

Development of a novel PET agent using D-amino acid

Ohshima, Yasuhiro; Tsushima, Yoshito*

Hoshasen To Sangyo, (136), p.9 - 12, 2014/06

no abstracts in English

Journal Articles

Journal Articles

The Introduction to database of radiation resistance on polymer materials and equipment

Shimada, Akihiko

Hoshasen To Sangyo, (136), p.33 - 35, 2014/06

Recovery from the accident at Tokyo Electric Power Company Fukushima Dai-ichi Nuclear Power Plant (NPP) is a matter of great urgency. In order to realize safe and secure operation for decontamination and decommissioning of NPP, it is indispensable to use equipments with sufficient radiation resistance (RR). In JAEA as well as other agency, various studies on RR of various materials and equipments have been conducted and a number of reports and papers have been published. Then, we started construction of a database named as "Database of Radiation Resistance on Polymer Materials and Equipments" and announced this database in a press release on June 1, 2012. At present, the database includes 878 data of materials, which are consisted of 423 data of polymer materials, 223 data of equipments and parts, 103 data of oils, fats and paintcoatings and 129 data of organic composite materials. The database will be extended and expected to be utilized for safe and secure operation.

Journal Articles

Analysis of microscopic air-bone particle by combined system of in-air micro PIXE and ion luminescence microscopic imaging and spectroscopy

Kada, Wataru*; Yokoyama, Akihito; Sato, Takahiro; Koka, Masashi; Kamiya, Tomihiro

Hoshasen To Sangyo, (136), p.40 - 45, 2014/06

no abstracts in English

164 (Records 1-20 displayed on this page)