Thermal neutron imaging with PIN photodiode line scanner and Eu-doped LiCaAlF6 scintillator

D. Totsuka, T. Yanagida, K. Fukuda, N. Kawaguchi, Y. Fujimoto, Y. Yokota, A. Yoshikawa

研究成果: Conference contribution

抄録

Thermal neutron imaging using Si PIN photodiode line scanner and Eu-doped LiCaAlF6 crystal scintillator has been developed. The pixel dimensions of photodiode are 1.18 mm (width) x 3.8 mm (length) with 0.4 mm gap and the module has 192 channels in linear array. The emission peaks of Eu-doped LiCaAlF6 after thermal neutron excitation are placed at 370 and 590 nm, and the corresponding photon sensitivities of photodiode are 0.04 and 0.34 A/W respectively. Polished scintillator blocks with a size of 1.18 mm (Width) x 3.8 mm (length) x 5.0mm (thickness) were wrapped by several layers of Teflon tapes as a reflector and optically coupled to the photodiodes by silicone grease. JRR-3 MUSASI beam line emitting 13.5 meV thermal neutrons with the flux of 8 x 105 n/cm2s was used for the imaging test. As a subject for imaging, a Cd plate was moved at the speed of 50 mm/s perpendicularly to the thermal neutron beam. Analog integration time was set to be 416.6 μs, then signals were converted by a delta-sigma A/D converter. After the image processing, we successfully obtained moving Cd plate image under thermal neutron irradiation using PIN photodiode line scanner coupled with Eu-doped LiCaAlF6 scintillator.

本文言語English
ホスト出版物のタイトル2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
出版社Institute of Electrical and Electronics Engineers Inc.
ページ342-346
ページ数5
ISBN(印刷版)9781467301183
DOI
出版ステータスPublished - 2011 1 1
イベント2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
継続期間: 2011 10 232011 10 29

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
ISSN(印刷版)1095-7863

Other

Other2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
国/地域Spain
CityValencia
Period11/10/2311/10/29

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング

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