[Table of Contents]

Plasma and Fusion Research

Volume 8, 2402164 (2013)

Regular Articles

Development of 14-MeV Neutron Measurement with Nuclear Emulsion for DT Burning Plasma Diagnostics
Kunihiro MORISHIMA, Mitsutaka ISOBE1), Hideki TOMITA, Toshiyuki NAKANO, Mitsuhiro NAKAMURA and Mamiko SASAO2)
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)
Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
(Received 8 December 2012 / Accepted 8 July 2013 / Published 27 December 2013)

Abstract

A method for the measurement of energetic DT neutron tails resulting from knock-on alpha particles is needed to study plasma physics in a fusion reactor. A nuclear emulsion offers satisfactory performance for the detection of fast neutrons and measures their energies using three-dimensional tracking information. However, the time required for analysis forms a bottleneck in the implementation of this measurement technique. Recently, the analysis speed of nuclear emulsion has dramatically increased because of our development. In this report, we propose the use of nuclear emulsion for DT burning plasma diagnostics using the latest analysis technology and the validation of the methodology. In addition, we discuss the prospects of improving nuclear emulsion technologies for fusion plasma diagnostics.

Keywords

neutron, nuclear emulsion, automated scanning system, DT burning plasma diagnostics, ITER

DOI: 10.1585/pfr.8.2402164

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References

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This paper may be cited as follows:

Kunihiro MORISHIMA, Mitsutaka ISOBE, Hideki TOMITA, Toshiyuki NAKANO, Mitsuhiro NAKAMURA and Mamiko SASAO, Plasma Fusion Res. 8, 2402164 (2013).