Recruitment for Postdoctoral Fellow
(Fixed-term researcher)

1. Physics	Chemistry	Mathematics	Geo and Environemtal Sciences	Biology	Radiation
   Mechanics	Material	Electricity and Electronics	Architectural and Civil Engineering	Applied Physics	Applied Chemistry
   Chemical Engineering	Measurements and Instruments	Computer and Information	Robotics	Other	All

2. No	Theme
   	Department	Section	Location	Contact Person	Radiation Worker/ Non-Radiation Worker	Field (for reference）
   	Summary
   J12	Study on the volcanic activity evaluation in a geological radioactive waste disposal
   	Nuclear Safety Research Center	Environmental Safety Research Group	Tokai Research and Development Center Nuclear Science Research Institute	Seiji Takeda Tel:+81-29-282-6170 E-mail: takeda.seiji@jaea.go.jp	Non-Radiation Worker	Applied Chemistry Physics Geo and Environemtal Sciences Measurements and Instruments
   	In a safety assessment of geological radioactive waste disposal, it is necessary to estimate the environmental impact at the site due to occurrence of natural phenomenon such as a volcanic activity, an earthquake and fault activity. In this theme, the research on the volcanic activity evaluation characterized by magma residence time, accumulated volume and temporal distribution of magma is conducted, in order to estimate the thermal and/or geochemical effects of a disposal site by a volcanic activity.
   J17	Development of metal recognition reagents and high efficient chemical separation systems
   	Sector of Nuclear Science Research Advanced Science Research Center	Research Group for Interfacial Reaction-Field Chemistry	Tokai Research and Development Center Nuclear Science Research Institute	Hirochika Naganawa Tel:+81-29-282-6615 E-mail: naganawa.hirochika@jaea.go.jp	Radiation Worker	Chemistry Applied Chemistry Chemical Engineering
   	The purpose of this research is to develop new chemical separation and sensing technologies having high efficiency and sensitivity for radioactive materials in environmental samples and valuable metals in industrial wastes. Specifically, separation systems for actinides, rare(minor) metals, precious metals, and heavy metals will be developed by using new extractants, adsorbents, and biomaterials that have high selectivity and binding ability for the metal ions. In this theme, fundamental and practical studies go together by applying "emulsion flow extractor" of a new-type extracting device.
   J21	Materials science research by using a muon beam
   	Sector of Nuclear Science Research Advanced Science Research Center	Research Group for Nanoscale Structure and Function of Advanced Materials	Tokai Research and Development Center Nuclear Science Research Institute	Wataru Higemoto Tel:+81-29-284-3873 E-mail: higemoto.wataru@jaea.go.jp	Radiation Worker	Physics Chemistry Material Applied Physics Applied Chemistry Measurements and Instruments
   	The applicant will be involved in materials science research by using accelerator-produced muons, which are implanted into a material and used as a sensitive local probe. In our group, the applicant will be able to use advanced muon beams, such as an ultra-slow muon beam in J-PARC, to investigate various functional materials. Instrumentation is also encouraged for the purpose. (http://asrc.jaea.go.jp/soshiki/gr/Nanoscale-gr/index.html)
   J22	Research and development of minor actinide separation process from high level liquid waste
   	Nuclear Science and Engineering Center	Research Croup for Partitioning, Partitioning and Transmutation Technology Division	Tokai Research and Development Center Nuclear Science Research Institute	Tatsuro Matsumura Tel:+81-29-282-6673 E-mail: matsumura.tatsuro@jaea.go.jp	Radiation Worker	Chemistry Applied Chemistry Chemical Engineering
   	In order to reduce the burden of the geological disposal of high level waste (HLW), partitioning and transmutation technology has been investigated. Since minor actinides have high radiotoxity and long half lives, the separation from HLW is very important. The subject of this theme is development of recovery and separation process of minor actinides with novel extractant from HLW for partitioning and transmutation technology. In this study, the novel extractants which has high selectivity of americium and curium from high level liquid waste will be studied and evaluated applicability for practical separation process. The experiments using minor actinides and high level liquid waste in glove boxes and hot cells will be carried out.
   F13	Research and development of treatment method for radioactive wastes generated at the contaminated water treatment facility in Fukushima Daiichi Power Plant
   	Sector of Nuclear Science Research Advanced Science Research Center	Research Group for Interfacial Reaction Field Chemistry	Tokai Research and Development Center Nuclear Science Research Institute	Kazuya Tanaka Tel:+81-29-284-3518 E-mail: tanaka.kazuya@jaea.go.jp	Radiation Worker	Geo and Environemtal Sciences Chemistry Material Applied Chemistry
   	At Fukushima Daiichi, radionuclides in the contaminated water have been removed according to thier physicochemical forms. Posttreatment method for disposal of those radionuclides collected by various materials has yet to be decided. This study aims to develop effective posttreatment methods for mainly long-life anionic radionuclides for which few effective treatment methods for geological disposal are known. The posttreatment methods for them include conversion to stable inorganic form and subsequent solidification.
   F14	Elucidation of migration behavior of radioactive cesium in forest and technological development for preventing dispersion of contaminates
   	Sector of Nuclear Science Research Advanced Science Research Center	Research Group for Interfacial Reaction Field Chemistry	Tokai Research and Development Center Nuclear Science Research Institute	Fuminori Sakamoto Tel:+81-29-284-3517 E-mail: sakamoto.fuminori@jaea.go.jp	Radiation Worker	Geo and Environemtal Sciences Biology Chemistry Applied Chemistry
   	Fungi including mushrooms have a high ability to absorb radioactive cesium from contaminated soil and woods. This ability is supposed to give significant impact on migration behavior of radioactive cesium in forest although the mechanism has yet to be elucidated. The Japanese government recently decided to decontaminate Satoyama, undeveloped woodland near the populated areas, in near future. To achieve this, prevention of radioactive cesium dispersion from the depths of the forest to Satoyama areas is necessary The purposes of this study is to elucidate the migration behavior of radioactive cesium in forest through investigating biological transformation of radioactive cesium by fungi and cesium immobilization by minerals. This study also aims to develop methods to preventing dispersion of radioactive cesium in forest.