[Table of Contents]

Plasma and Fusion Research

Volume 8, 2402068 (2013)

Regular Articles

Application of Nuclear Emulsion to Neutron Emission Profile Diagnostics in the National Spherical Torus Experiment
Mitsutaka ISOBE1,2), Douglass S. DARROW3), Alvin L. ROQUEMORE3), Kunihiro MORISHIMA4), Hideki TOMITA4), Haruna MINATO4) and Kunihoro OGAWA1)
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
2)
The Graduate University for Advanced Studies, 322-6 Oroshi-cho, Toki 509-5292, Japan
3)
Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451, USA
4)
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
(Received 21 November 2012 / Accepted 24 February 2013 / Published 19 June 2013)

Abstract

The technology for OPERA experiments in neutrino physics was applied to neutral-beam-heated deuterium discharges of NSTX in order to measure d-d neutron emission profile. The diagnostic system consisted of nuclear emulsions named OPERA films and the automatic track scanning system S-UTS developed in Nagoya University. A neutron collimator having three channels was temporarily built for this purpose. The nuclear emulsion indicated peaked neutron emission profiles at the plasma center in NSTX as expected.

Keywords

neutron, nuclear emulsion, NBI, NSTX

DOI: 10.1585/pfr.8.2402068

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This paper may be cited as follows:

Mitsutaka ISOBE, Douglass S. DARROW, Alvin L. ROQUEMORE, Kunihiro MORISHIMA, Hideki TOMITA, Haruna MINATO and Kunihoro OGAWA, Plasma Fusion Res. 8, 2402068 (2013).