[Table of Contents]

Plasma and Fusion Research

Volume 8, 2406095 (2013)

Regular Articles

Development of Fusion Neutron Pinhole Imaging using Nuclear Emulsions for Energetic Ion Diagnostics
Hideki TOMITA, Fumitaka YAMASHITA, Yousuke YAMAMOTO, Haruna MINATO, Kunihiro MORISHIMA, Yosuke SAKAI, Mitsutaka ISOBE1), Kunihiro OGAWA1), Toshiyuki NAKANO, Mitsuhiro NAKAMURA, Jun KAWARABAYASHI, Tetsuo IGUCHI, Kentaro OCHIAI2) and MunSeong CHEON3)
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
2)
Fusion Research and Development Directorate, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan
3)
Diagnostics Technology Team, ITER Korea, National Fusion Research Institute, Daejeon 305-333, Republic of Korea
(Received 7 December 2012 / Accepted 5 April 2013 / Published 15 August 2013)

Abstract

A compact neutron pinhole camera using nuclear emulsion has been developed as a neutrone mission profile monitor for energetic ion diagnostics in fusion plasma. We measured point-spread function of the neutron pinhole camera consists of a pinhole collimator made of tungsten alloy and stacked nuclear emulsions. Using a high-speed, automatic readout and recognition of recoiled proton tracks, point-spread function for 14 MeV neutron was clearly obtained.

Keywords

nuclear emulsion, neutron emission profile monitor, pinhole imaging

DOI: 10.1585/pfr.8.2406095

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References

  • [1] T. Nishitani et al., Plasma Phys. Control. Fusion 38, 355 (1996).
  • [2] J.M. Adams et al., Nucl. Instrum. Methods. A329, 277 (1993).
  • [3] J.D. Strachan et al., Phys. Lett. 66A, 295 (1978).
  • [4] B. Wolle et al., Nucl. Instrum. Methods A368, 425 (1996).
  • [5] K. Morishima and T. Nakano, J. Instrumentation 5, P04011 (2010).
  • [6] K. Morishima et al., Radiation Measurements 50, 237 (2013).
  • [7] M. Isobe et al., J. Plasma Fusion Res. 8, 2402068 (2013).
  • [8] Y. Nomura et al., Plasma Fusion Res. 6, 2402148 (2011).
  • [9] T. Nakamura et al., 4th Symp. On Accelerator Science Technol., RIKEN, Saitama, 24-26 Nov. 155 (1982).
  • [10] K. Niita et al., PHITS: Particle and Heavy Ion Transport code System, Version 2.23, JAEA-Data/Code 2010-022 (2010).

This paper may be cited as follows:

Hideki TOMITA, Fumitaka YAMASHITA, Yousuke YAMAMOTO, Haruna MINATO, Kunihiro MORISHIMA, Yosuke SAKAI, Mitsutaka ISOBE, Kunihiro OGAWA, Toshiyuki NAKANO, Mitsuhiro NAKAMURA, Jun KAWARABAYASHI, Tetsuo IGUCHI, Kentaro OCHIAI and MunSeong CHEON, Plasma Fusion Res. 8, 2406095 (2013).