Reseacher

Name SATO Isamu
Official Title Professor
Affiliation Department of Nuclear Safety Engineering
E-mail isato@tcu.ac.jp
Web
  1. http://www.risys.gl.tcu.ac.jp/Main.php?action=profile&type=detail&tchCd=5002018
Profile I'm working in the nuclear field for a long time.
At Graduate School of Kyushu Univ. ('90), I studied the behavior of fission products in fact reactor MOX fuels irradiated in the fast experimental reactor, JOYO (MK-II core) belonging to Japan Atomic Energy Agency (JAEA). By conducting Post Irradiation Examination (so-called PIE), I obtained the removal behavior of Mo containing fission product alloy inclusions depending on the fuel burnup.
After graduation, I was employed by JAEA, and conducted various works related to nuclear researches such as fuel material property evaluation, fuel design research, high temperature fuel behavior, decommissioning of NPPs, radioactive waste management and so on. Through these careers, the knowledge on fission products in irradiated fuels have been accumulated in myself. Of course, the Fukushima Daiichi NPP accident made my research life change, which are focusing on radioactive waste issue such as geological disposal and application of useful fission products.
After left JAEA (work for 16 years), I worked in Tokyo Institute for Technology as a manager for decommissioning human resource program for one and half years.
From 2017, I started my TCU research life in fields such as decommissioning of NPPs, radioactive waste management, application of useful fission products and so on. The main purpose of my researches is to make the radioactive materials (or wastes) management sound in the various societies.
Research Field(Keyword & Summary)
  1. (1) application of useful fission products such as Pd, Ru, Rh (Tc, Mo)

    Pd-Ru-Rh alloy precipitations are obtained as insoluble residue in the spent fuel reprocessing. These metal elements are used as a catalysis for various chemical reactions, but they are so expensive, especially recently. On the other hand, some catalysis materials are needed to prevent hydrogen production in fuel debris containment vessels in Fukushima Daiichi NPP. As this material, the fission product alloy could be used, I feel so. Therefore, I research on many cut ends on this alloy such as hydrogen recombination, hydrogen storage, calculation science, metallography for useful applications.

Representative Papers
  1. (1)Fission Products Release from Irradiated FBR MOX Fuel during Transient Conditions Isamu Sato, Toshio Nakagiri, Takashi Hirosawa, Shinya Miyahara and Takashi Namekawa J. Nucl. Sci. Technol., 40, 104-113 (2003)
  2. (2)Ab Initio Study of Uranium and Plutonium Carbides and Nitrides Michel Freyss, Isamu Sato Special publication-Royal Society of Chemistry, vol 305, p430-432 (2005)
  3. (3)High temperature behavior of irradiated mixed nitride fuel during heating tests Isamu Sato, Kosuke Tanaka, Takashi Hirosawa, Shuhei Miwa and Kenya Tanaka, J. Alloys and Compounds, 444-445, 580-583 (2007).
  4. (4)Diffusion behaviors of plutonium and americium in polycrystalline urania Isamu Sato, Kosuke Tanaka, Tatsumi Arima Materials Science and Engineering 9, 012005 (2010).
  5. (5)Fission gases and helium gas behavior in irradiated mixed oxide fuel pin Isamu Sato, Kozo Katsuyama, Yasuo Arai J. Nucl. Mater., 416, 151-157 (2011).
  6. (6) Burnup dependence of melting temperature of FBR mixed oxide fuels irradiated to high burnup Takashi Hirosawa, Isamu Sato J. Nucl. Mater., 418, 207-214 (2011)
  7. (7) Americium and plutonium release behavior from irradiated mixed oxide fuel during heating Isamu Sato, Mitsuo Suto, Shuhei Miwa, Takashi Hirosawa, Shin-ichi Koyama J. Nucl. Mater. 437, 275-281 (2013).
  8. (8) Influence of boron vapor on transport behavior of deposited CsI during the heating test simulating a BWR severe accident condition Isamu Sato, Takashi Onishi, Kosuke Tanaka, Maho Iwasaki, Shinichi Koyama Journal of Nuclear Materials 461 (2015) 22.
  9. (9) Chemical reaction kinetics dataset of Cs-I-B-MoO-H system for evaluation of fission product chemistry under LWR severe accident conditions Naoya Miyahara, Shuhei Miwa, Naoki Horiguchi, Isamu Sato, Osaka Masahiko Journal of Nuclear Science and Technology 56 (2019) 228–240.
  10. (10) Experimental study on transport behavior of cesium iodide in the reactor coolant system under LWR severe accident conditions Naoya Miyahara, Shuhei Miwa, Mélany Gouëllo, Junpei Imoto, Naoki Horiguchi, Isamu Sato &Masahiko Osaka Journal of Nuclear Science and Technology, 57 (2020) 1287–1296.
Patent
  1. Simultaneous measurement device for light radiance by wavelength (2007- 36462)
  2. High temperature heating furnace (2007- 36463)
Award - Atomic Energy Society of Japan, Award Encouragement Award (2006)
- Japan Atomic Energy Agency, President's Award Research and Development Achievement Award (2006)
- Japan Atomic Energy Agency, President's Award Research and Development Achievement Award (2013)
- Japan Atomic Energy Agency, President's Award Research and Development Achievement Award (2015)
Grant-in-Aid for Scientific Research Support: Japan Society for Promotion of Science (JSPS) https://nrid.nii.ac.jp/en/nrid/1000080421783/
Recruitment of research assistant(s) Yes (1)
Affiliated academic society (Membership type) (1) AESJ
(2) SICE
(3) JAAST
Education Field (Undergraduate level) nuclear fuel and its cycle engineerings, radioactive waste manegement, fuel design
Education Field (Graduate level) nuclear fuel and its cycle engineerings, radioactive waste manegement, fuel design

Affiliation