Development of fast neutron pinhole camera using nuclear emulsion for neutron emission profile measurement in KSTAR

Y Izumi; H Tomita; Y Nakayama; S Hayashi; K Morishima; M Isobe; M S Cheon; K Ogawa; T Nishitani; T Naka; T Nakano; M Nakamura; T Iguchi

doi:10.1063/1.4963866

Development of fast neutron pinhole camera using nuclear emulsion for neutron emission profile measurement in KSTAR

Rev Sci Instrum. 2016 Nov;87(11):11D840. doi: 10.1063/1.4963866.

Authors

Y Izumi¹, H Tomita¹, Y Nakayama¹, S Hayashi¹, K Morishima¹, M Isobe², M S Cheon³, K Ogawa², T Nishitani², T Naka¹, T Nakano¹, M Nakamura¹, T Iguchi¹

Affiliations

¹ Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
² National Insutitute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan.
³ Diagnostics Technology Team, ITER Korea, National Fusion Reseach Institute, Daegeon 305-333, South Korea.

PMID: 27910454
DOI: 10.1063/1.4963866

Abstract

We have developed a compact fast neutron camera based on a stack of nuclear emulsion plates and a pinhole collimator. The camera was installed at J-port of Korea superconducting tokamak advanced research at National Fusion Research Institute, Republic of Korea. Fast neutron images agreed better with calculated ones based on Monte Carlo neutron simulation using the uniform distribution of Deuterium-Deuterium (DD) neutron source in a torus of 40 cm radius.