Chinese Physics C > 2005, Vol. 29 > Issue(2): 124-129

The Efficiency Mearurement of NaI(Tl) Detector for a Long Tube Volume Source of 6.13MeV Gamma-Ray

China Institute of Atomic Energy,Beijing 102413,China2 China Shipbulding Industry Corporation No.719 Research Institute,Wuhan 430064,China

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Abstract：
The relation of the ¹⁶N leak rate of the nuclear reactor to the efficiency and counting rate of γ–ray detector, velocity of high pressure vapor, is deduced. a conclusion of the efficiency independent on the velocity of high pressure vapor and decay constant of ¹⁶N is drawn. experimentally the space distribution of the relative efficiencies and the absolute efficiency at a refe~rence point are measured with Puc source emiting 6.13mev gamma ray detected by nai(tl) counter. The measured efficiency is consistent with monte carlo calculation in 7%. the compton small angle scattering contribution to the convergence length and the effect of the energy difference between 7.12mev and 6.13mev gamma ray on measured ¹⁶N leak rate are discussed.

References

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SHI Zong-Ren, XU Kun, DING Sheng-Yao, WANG Shun-Qing, GUO Zhi-Rong and ZUO Liang-Zhou. The Efficiency Mearurement of NaI(Tl) Detector for a Long Tube Volume Source of 6.13MeV Gamma-Ray[J]. Chinese Physics C, 2005, 29(2): 124-129.

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Received: 2004-06-07
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

The Efficiency Mearurement of NaI(Tl) Detector for a Long Tube Volume Source of 6.13MeV Gamma-Ray

Corresponding author:SHI Zong-Ren,

China Institute of Atomic Energy,Beijing 102413,China2 China Shipbulding Industry Corporation No.719 Research Institute,Wuhan 430064,China

Received Date:2004-06-07

Accepted Date:1900-01-01

Available Online:2005-02-05

Abstract:The relation of the¹⁶N leak rate of the nuclear reactor to the efficiency and counting rate of γ–ray detector, velocity of high pressure vapor, is deduced. a conclusion of the efficiency independent on the velocity of high pressure vapor and decay constant of¹⁶N is drawn. experimentally the space distribution of the relative efficiencies and the absolute efficiency at a refe~rence point are measured with Puc source emiting 6.13mev gamma ray detected by nai(tl) counter. The measured efficiency is consistent with monte carlo calculation in 7%. the compton small angle scattering contribution to the convergence length and the effect of the energy difference between 7.12mev and 6.13mev gamma ray on measured¹⁶N leak rate are discussed.

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The Efficiency Mearurement of NaI(Tl) Detector for a Long Tube Volume Source of 6.13MeV Gamma-Ray

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