@article{oai:nagoya.repo.nii.ac.jp:00005672, author = {Naka, R. and Watanabe, K. and Kawarabayashi, J. and Uritani, A. and Iguchi, T. and Hayashi, N. and Kojima, N. and Yoshida, T. and Kaneko, J. and Takeuchi, H. and Kakuta, T.}, issue = {6}, journal = {IEEE Transactions on Nuclear Science}, month = {Dec}, note = {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.}, pages = {2348--2351}, title = {Radiation Distribution Sensing With Normal Optical Fiber}, volume = {48}, year = {2001} }