Development of an optical fiber type detector using a Eu:LiCaAlF6 scintillator for neutron monitoring in boron neutron capture therapy

Kenichi Watanabe; Yuya Kawabata; Atsushi Yamazaki; Akira Uritani; Tetsuo Iguchi; Kentaro Fukuda; Takayuki Yanagida

doi:10.1016/j.nima.2015.08.056

Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy

Kenichi Watanabe, Yuya Kawabata, Atsushi Yamazaki, Akira Uritani, Tetsuo Iguchi, Kentaro Fukuda, Takayuki Yanagida

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

We have developed a small neutron detector probe as a thermal neutron flux monitor for boron neutron capture therapy. The detector consists of an optical fiber and a small Eu:LiCaAlF₆ scintillator. In order to improve neutron-gamma ray discrimination capability, we use the small-size scintillator, whose size is controlled to be smaller than fast electron range produced by gamma-rays and larger than the range of charged particles induced by ⁶Li(n,t) reactions. We confirmed the improved neutron-gamma ray discrimination capability by comparing the detector responses between a small-size scintillator and a slab one. We also evaluated the neutron sensitivity of the fabricated optical fiber type neutron detector to be 2×10^-⁴ cm².

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	802
DOIs	https://doi.org/10.1016/j.nima.2015.08.056
Publication status	Published - 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2015.08.056

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Watanabe, K., Kawabata, Y., Yamazaki, A., Uritani, A., Iguchi, T., Fukuda, K., & Yanagida, T. (2015). Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 802, 1-4. https://doi.org/10.1016/j.nima.2015.08.056

Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy. / Watanabe, Kenichi; Kawabata, Yuya; Yamazaki, Atsushi et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 802, 2015, p. 1-4.

Research output: Contribution to journal › Article › peer-review

Watanabe, K, Kawabata, Y, Yamazaki, A, Uritani, A, Iguchi, T, Fukuda, K & Yanagida, T 2015, 'Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 802, pp. 1-4. https://doi.org/10.1016/j.nima.2015.08.056

Watanabe K, Kawabata Y, Yamazaki A, Uritani A, Iguchi T, Fukuda K et al. Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2015;802:1-4. doi: 10.1016/j.nima.2015.08.056

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abstract = "We have developed a small neutron detector probe as a thermal neutron flux monitor for boron neutron capture therapy. The detector consists of an optical fiber and a small Eu:LiCaAlF6 scintillator. In order to improve neutron-gamma ray discrimination capability, we use the small-size scintillator, whose size is controlled to be smaller than fast electron range produced by gamma-rays and larger than the range of charged particles induced by 6Li(n,t) reactions. We confirmed the improved neutron-gamma ray discrimination capability by comparing the detector responses between a small-size scintillator and a slab one. We also evaluated the neutron sensitivity of the fabricated optical fiber type neutron detector to be 2×10-4 cm2.",

author = "Kenichi Watanabe and Yuya Kawabata and Atsushi Yamazaki and Akira Uritani and Tetsuo Iguchi and Kentaro Fukuda and Takayuki Yanagida",

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AU - Watanabe, Kenichi

AU - Kawabata, Yuya

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AU - Uritani, Akira

AU - Iguchi, Tetsuo

AU - Fukuda, Kentaro

AU - Yanagida, Takayuki

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N2 - We have developed a small neutron detector probe as a thermal neutron flux monitor for boron neutron capture therapy. The detector consists of an optical fiber and a small Eu:LiCaAlF6 scintillator. In order to improve neutron-gamma ray discrimination capability, we use the small-size scintillator, whose size is controlled to be smaller than fast electron range produced by gamma-rays and larger than the range of charged particles induced by 6Li(n,t) reactions. We confirmed the improved neutron-gamma ray discrimination capability by comparing the detector responses between a small-size scintillator and a slab one. We also evaluated the neutron sensitivity of the fabricated optical fiber type neutron detector to be 2×10-4 cm2.

AB - We have developed a small neutron detector probe as a thermal neutron flux monitor for boron neutron capture therapy. The detector consists of an optical fiber and a small Eu:LiCaAlF6 scintillator. In order to improve neutron-gamma ray discrimination capability, we use the small-size scintillator, whose size is controlled to be smaller than fast electron range produced by gamma-rays and larger than the range of charged particles induced by 6Li(n,t) reactions. We confirmed the improved neutron-gamma ray discrimination capability by comparing the detector responses between a small-size scintillator and a slab one. We also evaluated the neutron sensitivity of the fabricated optical fiber type neutron detector to be 2×10-4 cm2.

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Development of an optical fiber type detector using a Eu:LiCaAlF₆ scintillator for neutron monitoring in boron neutron capture therapy

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