JOPSS - Search Results

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

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

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

http://ci.nii.ac.jp/naid/40020674698

The article describes utilization programs for irradiation facilities for ion beam, -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