Centers & Labs

RIKEN Center for Advanced Photonics

Neutron Beam Technology Team

Team Leader: Yoshie Otake (D.Sci.)
Yoshie  Otake(D.Sci.)

There have been only few domestic facilities with neutron sources available as the beam probe, it has been said that the shortage of the beam time for research and/or investigation, and especially for cultivation of human resources in the universities or graduate school. We are developing compact neutron source in Wako campus in RIKEN to conquer the present situation by showing how it is useful when we have compact neutron source on hand.
First, we advance the visualization technique of non-destructive inspection with neutron beam including software development. Secondarily the visualization of such physical quantities as 3-dimentional magnetic field distribution, thermal distribution inside the material, deformation of metal will be aimed for development. By reducing size of compact neutron source aiming for transportable non-destructive inspection system with neutron source.
The research development centered on RANS (RIKEN Accelerator-driven compact Neutron Source) is going to evolve in the industrial world with novel non-destructive inspection imaging system with the combination of compact neutron source and the analysis system. We are also developing the large-area imaging detector of fast neutrons with MeV energy to provide a new option for transportable neutron non-destructive inspection system for outdoor use.

Main Research Field


Related Research Fields

Engineering / Chemistry / Materials Sciences

Research Subjects

  • R & D and improvement for compact neutron source
  • Development of large-area neutron imaging detector for non-destructive inspection system for bridges
  • Non-destructive visualization of under-film corrosion of steels and investigation of its mechanism
  • Plastic deforming analysis and pulse neutron imaging method with compact neutron source

Selected Publications

  1. Y.Otake, M.Olbinado, Y.Seki, K.Hirota, Y.Yamagata, J.Ju, T.Adachi, S.Morita, Y.Iwashita,
    M.Hino, M.Ichikawa, M.Kitaguchi, T.Takahashi, H.Yoshizawa, S.W.Lee, W.Yashiro, A.Momose.:
    "Research toward the development of compact neutron interference imaging instrument with gratings"
    J.Phys.5th ECNS J.of Phys.Cinf.S.340 012035(2012)
  2. Y.Seki, H.Funahashi, M.Kitaguchi, M.Hino, Y.Otake, K.,Taketani, H.M.Shimizu.:
    "Multilayer Interferometer with Complete Path Separation"
    J.Phys.Soc.Jpn 79 124201(2010)
  3. K.Taketani, Y.Seki, H.Funahashi, M.Hino, M.Kitaguchi, Y.Otake, and H.M.Shimizu.:
    "Moiré fringes in a neutron spin interferometer"
    J.Phys.Soc.Jpn.76 064008(2007)
  4. S.Kawamura, J.H.Kaneko, H.Fujimoto, Y.Otake, F.Fujita, A.Homma, T.Sawamura, P.Mikula, M.Furusaka.:
    "Possibility of using a PMN-PT single-crystal as neutron optical device"
    Physica B 385&386 13277 (2006)
  5. J.H.Kaneko, Y.Otake, H.Fujimoto, S.Kawamura, M.Watanabe, F.Fujita, T.Sawamura, P.Mikula,M.Furusaka.:
    "Investigation on Possibility of Neutron Electric Optical Devices Based on Piezoelectric Single Crystals"
    Nucl. Instr. Meth. A529 166 (2004)
  6. M.Kitaguchi, H.Funahashi, T.Nakura, T.Taketani, M.Hino, Y.Otake, and H.M.Shimizu.:
    "Cold-Neutron Interferometry Using Beam Splitting Etalons"
    Nucl.Instr. Meth A529 190 (2004)
  7. Y.Otake, S.Tasaki, T.Ebisawa, T.Fukunaga, N.Achiwa and M.Hino.:
    "Decoherence and Spin Interferometry experiments Using Mechanical Alloying Samples"
    J.Phys. Soc.Jpn.70 501 (2001)
  8. Claude M.E.Zeyen, Y.Otake.:
    "Neutron EDM search using crystal techniques"
    Nucl. Instr. Meth. A440 489 (2000)

Lab Members

Principal Investigator

Yoshie Otake
Team Leader

Core Members

Atsushi Taketani
Deputy Team Leader
Masato Takamura
Senior Scientist
Hideyuki Sunaga
Senior Scientist
Tomohiro Kobayashi
Senior Research Scientist
Yasuo Wakabayashi
Research Scientist
Maki Mizuta
Research Scientist
Yoshimasa Ikeda
Postdoctoral Researcher
Shunsuke Mihara
Technical Staff I
Shinzo Yanagimachi
Technical Staff I
Makoto Goto
Technical Staff II

Contact information

Neutron Application Facilities,
2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Email: yotake [at]

Related links


  • 8th Neutron seminar series [Current state of Neutron imaging technique] Prof. K.Mochiki Tokyo City University