High detection efficiency scintillating fiber detector for time-resolved measurement of triton burnup 14 MeV neutron in deuterium plasma experiment

Kunihiro Ogawa, Mitsutaka Isobe, Takeo Nishitani, Eiji Takada, Hiroki Kawase, Tatsuki Amitani, Neng Pu, Jungmin Jo, Munseong Cheon, Junghee Kim, Misako Miwa, Shigeo Matsuyama, Isao Murata

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The behavior of the 1 MeV triton has been studied in order to understand the alpha particle confinement property in the deuterium operation of toroidal fusion devices. To obtain time evolution of the deuterium-tritium (D-T) neutron emission rate where the secondary DT neutron emission rate is approximately 1012 n/s, we designed two high detection efficiency scintillating fiber (Sci-Fi) detectors: a 1 mm-diameter scintillation fiber-based detector Sci-Fi1 and a 2 mm-diameter scintillation fiber-based detector Sci-Fi2. The test in an accelerator-based neutron generator was performed. The result shows that the directionality of each detector is 15° and 25°, respectively. It is found that detection efficiency for DT neutrons is around 0.23 counts/n cm2 for the Sci-Fi1 detector and is around 1.0 counts/n cm2 for the Sci-Fi2 detector.

Original languageEnglish
Article number10I101
JournalReview of Scientific Instruments
Volume89
Issue number10
DOIs
Publication statusPublished - 2018 Oct 1

ASJC Scopus subject areas

  • Instrumentation

Fingerprint Dive into the research topics of 'High detection efficiency scintillating fiber detector for time-resolved measurement of triton burnup 14 MeV neutron in deuterium plasma experiment'. Together they form a unique fingerprint.

  • Cite this

    Ogawa, K., Isobe, M., Nishitani, T., Takada, E., Kawase, H., Amitani, T., Pu, N., Jo, J., Cheon, M., Kim, J., Miwa, M., Matsuyama, S., & Murata, I. (2018). High detection efficiency scintillating fiber detector for time-resolved measurement of triton burnup 14 MeV neutron in deuterium plasma experiment. Review of Scientific Instruments, 89(10), [10I101]. https://doi.org/10.1063/1.5032118