Radiation distribution sensing with normal optical fiber

R. Naka, K. Watanabe, J. Kawarabayashi, T. Iguchi, N. Hayashi, N. Kojima, T. Yoshida, J. Kaneko, H. Takeuchi, T. Kakuta

Research output: Contribution to journalConference articlepeer-review

19 Citations (Scopus)


The purpose of this study is to develop a radiation distribution monitor using a normal plastic optical fiber. The monitor has a long operating length and can obtain continuous radiation distributions. A principle of the position sensing is based on a time-of-flight technique. The monitor is sensitive to beta rays or charged particles, gamma rays, and fast neutrons. The spatial resolutions for beta-rays (90Sr-90Y), gamma-rays (137Cs), and D-T neutrons are 30, 37, and 13 cm, respectively. The detection efficiencies for the beta-rays, gamma-rays, and D-T neutrons are 0.11%, 1.6 × 10-5% and 1.2 × 10-4%, respectively. The effective attenuation length of the detection efficiency is 18 m. In this paper, we describe the basic characteristics of this monitor.

Original languageEnglish
Pages (from-to)2348-2351
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number6 II
Publication statusPublished - Dec 2001
Externally publishedYes
Event2001 Nuclear Science Symposium (NSS) - Lyon, France
Duration: Oct 15 2000Oct 20 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Radiation distribution sensing with normal optical fiber'. Together they form a unique fingerprint.

Cite this