Multi-scattering time-of-flight neutron spectrometer for deuterium to tritium fuel ratio measurement in fusion experimental reactors

K. Asai, K. Yukawa, T. Iguchi, N. Naoi, K. Watanabe, J. Kawarabayashi, M. Yamauchi, C. Konno

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1 Citation (Scopus)

Abstract

A time-of-flight (TOF) neutron spectrometer has potential as a fuel ratio (nD/nT) measurement system in the International Thermonuclear Experimental Reactor (ITER). A new neutron spectrometer is proposed to monitor the fuel ratio in the core of the ITER plasma. This system is based on a conventional TOF method and is composed of a water cell and a few tens of scintillator pairs. The water cell is inserted before the first scintillator of the TOF system and serves as a neutron scattering material. A trial experiment demonstrates the feasibility of this system for detecting trace-DD neutrons within a DT neutron beam. The system responses to DT and DD neutrons are also presented.

Original languageEnglish
Pages (from-to)1818-1821
Number of pages4
JournalFusion Engineering and Design
Volume83
Issue number10-12
DOIs
Publication statusPublished - Dec 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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