Centers & Labs

RIKEN Center for Advanced Photonics

Neutron Beam Technology Team

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

RIKEN has developed accelerator-driven compact pulse neutron systems for practical use of industrial applications and infrastructure non-destructive inspection with the names of RANS (RIKEN Accelerator-driven compact neutron source). RANS has succeeded to develop non-destructive inspection methods with slow and fast neutrons. One is the visualization method of the corrosion and its related water movement of painted steels and the analytical method of the quantitative estimation of the water movement in the painted steels, the other is the neutron engineering diffractometer for the texture evaluation and the austenite volume fraction estimation of iron and steel. The others are the fast neutron imaging applications.

Main Research Field

Interdisciplinary science and engineering

Related Research Fields

Complex systems / Engineering


  • Accelerator-based compact neutron system
  • Non-destructive inspection system
  • Texture evaluation observation
  • Research and development of non-destructive inspection for infrastructures
  • Detection of salt damage in the concrete by prompt-gamma neutron activation analysis

Selected Publications

  1. A.Taketani, M.Yamada, Y.Ikeda, T.Hashiguchi, H.Sunaga, Y.Wakabayashi, S.Ashigai, M.Takamura, S.Mihara, S.Yanagimachi, Y.Otake, T.kobayashi, k.Kono, and T.Nakayama,
    "Visualization of water in corroded region of painted steels at a compact neutron source",
    ISIJ International, 57, No. 1,(2017),
  2. M.Takamura, Y.Ikeda, H.Sunaga, A.Taketani, Y.Otake, H.Suzuki, M.Kumagai, T.Hama and Y.Oba:
    "Non-destructive Texture Measurement of Steel Sheets with Compact Neutron Source "RANS"",
    J of Phys:Conference Series, 734, Part B, General Papers, (2016), DOI: 10.1088/1742-6596/734/3/032047
  3. H.Sunaga, M.Takamura, Y.Ikeda, Y.Otake, T.Hama, M.Kumagai, H.Suzuki and S.Suzuki:
    "Texture evaluation in ductile fracture process by neutron diffraction measurement",
    J of Phys:Conference Series, 734, Part B, General Papers, (2016), DOI: 10.1088/1742-6596/ 734/3/032027
  4. .Y.Wakabayashi, A.Taketani, Y.Ikeda, T.Hashiguchi, T.Kobayashi, S.Wang, M.Yan, M. Harada, Y. Ikeda, and Y.Otake:
    "A function formation of source neutron production by the 9Be + p reaction at 7 MeV at RANS",
    JAEA-Conf 2016, 400, pp.135-140, (2016)
  5. Y.Ikeda, M.Takamura, A.Taketani, H.Sunaga, Y.Otake, H.Suzuki, M.Kumagai, Y.Oba:
    "Prospect for application of compact accelerator-based neutron source to neutron engineering diffraction",
    Nuclear Instruments and Methods in Physics Research Section A, pp.61-67, (2016),
  6. 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)
  7. 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)

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
Shunsuke Mihara
Technical Staff I
Makoto Goto
Technical Staff II
Yuichi Yoshimura
Visiting Scientist
Baolong Ma
International Program Associate

Contact information

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

Email: yotake [at]

Related links

Recent research results