Neutron Beam Technology Team

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.

Research Fields

Physics / 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
• Neutron imaging and SANS(Small Angle Neutron Scattering) analysis of iron and steel samples for long-term deformation and/or transmutation
• Non-destructive detection of magnetic field, temperature gradient, structural distortion

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. 5^th ECNS J. of Phys. Conf. S. 340 012035 (2012).
2. Y,Seki, H.Funahasi, 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. M. Yamada, Y. Iwashita, M. Ichikawa, T.Sugimoto, H. Tongu, H. Fujisawa, H. M. Shimizu, T. Ino, K. Mishima, K. Taketani, T. Yoshioka, S. Muto, T. Morishima, T. Oku, J. Suzuki, T. Shinohara, K. Sakai, H. Sato, K. Hirota, Y. Otake, Y. Seki, S. Kawasaki, S. Komamiya, Y. Kamiya, H.i Otono, S. Yamashita, P. Geltenbort.:
   "Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons".
   Physica B404 2646 (2009).
4. 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).
5. 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 1277 (2006).
6. J.H.Kaneko, Y.Otake, H.Fujimoto, S. Kawamura, M. Watanabe, F.Fujita, T.Sawamura, P. Mikula, and M.Fuarusaka.:
   "Investigation on Possibility of Neutron Electric Optical Devices Based on Piezoelectric Single Crystals".
   Nucl. Instr. Meth. A529 166 (2004)
7. 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).
8. 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).
9. Claude M.E.Zeyen, Y.Otake.:
   "Neutron EDM search using crystal techniques".
   Nucl. Instr. Meth. A440 489 (2000).