A position-sensitive detector with lithium glass and MaPMT

FU Zai-Wei; JIA Ru; HENG Yue-Kun; QI Ming; HUANG Chang-Hao; LIU Shu-Lin; QIAN Sen; LI Shao-Li; CHEN Xiao-Hui; LIU Shu-Dong; LEI Xiang-Cui; HUANG Guo-Rui

doi:10.1088/1674-1137/36/11/010

Chinese Physics C> 2012, Vol. 36> Issue(11) : 1095-1100 DOI: 10.1088/1674-1137/36/11/010

A position-sensitive detector with lithium glass and MaPMT

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Abstract：
A position-sensitive detector is designed for neutron detection. It uses a single continuous screen of a self-made lithium glass scintillator, rather than discrete crystal implementations, coupling with a multi-anode PMT (MaPMT). The scintillator is fast and efficient; with a decay time of 34 ns and thermal neutron detection efficiency of around 95.8% for the 3 mm thick screen, and its light yield is around 5670 photons per neutron and 3768 photons per MeV γ rays deposition. The spatial resolution is around 1.6 mm (FWHM) with the energy resolution around 34.7% by using α (5.2 MeV) rays test.

References

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Van Eijk C W E, Bessiere A, Dorenbos P. Nucl. Instrum. Methods A, 2004, 529: 260-267[2] Nishimura H, Hattori K, Kabuki S et al. Nucl. Instrum. Methods A, 2007, 573: 115-118[3] Pani R, Pellegrini R, Cinti M N et al. Nucl. Instrum. Methods A, 2003, 505: 590-594[4] Siegel S, Cherry S R, Ricci A R. IEEE Trans. Nucl. Sci. 1995, 42(4): 1069-1074[5] Sakai K, Hirota K, Adachi T et al. Nucl. Instrum. Methods A, 2004, 529: 303-306[6] van Eijk C W E. Nucl. Instrum. Methods A, 2001, 460: 1-14[7] BAN G, Bodek K, Lefort T et al. Nucl. Instrum. Methods A, 2009, 611: 280-283[8] JI Chang-Song. Handbook of Nuclear Radiation Detection and Their Experiment Techniques. first edtion. Beijing: Atomic Energy Press, 1990. 324 (in Chinese)

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FU Zai-Wei, JIA Ru, HENG Yue-Kun, QI Ming, HUANG Chang-Hao, LIU Shu-Lin, QIAN Sen, LI Shao-Li, CHEN Xiao-Hui, LIU Shu-Dong, LEI Xiang-Cui and HUANG Guo-Rui. A position-sensitive detector with lithium glass and MaPMT[J]. Chinese Physics C, 2012, 36(11): 1095-1100. doi: 10.1088/1674-1137/36/11/010

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Received: 2012-02-07
Revised: 2012-03-23

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沈阳化工大学材料科学与工程学院沈阳 110142

A position-sensitive detector with lithium glass and MaPMT

Corresponding author: FU Zai-Wei,

Corresponding author: HENG Yue-Kun,

Received Date: 2012-02-07
Accepted Date: 2012-03-23
Available Online: 2012-11-05

Abstract: A position-sensitive detector is designed for neutron detection. It uses a single continuous screen of a self-made lithium glass scintillator, rather than discrete crystal implementations, coupling with a multi-anode PMT (MaPMT). The scintillator is fast and efficient; with a decay time of 34 ns and thermal neutron detection efficiency of around 95.8% for the 3 mm thick screen, and its light yield is around 5670 photons per neutron and 3768 photons per MeV γ rays deposition. The spatial resolution is around 1.6 mm (FWHM) with the energy resolution around 34.7% by using α (5.2 MeV) rays test.