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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

  • 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.
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    [1] . ISO-4037-2 1997, First Edition 12 -15 Part 22. Tilley D R, Weller H R, Cheves C M. Nucl .Phys. , 1993, A564: 13-273. HUANG Hai, XU Ming, XU Ji-Jun et al . Atomic Energy Science and Technolegy, 1996, 30( 5) : 444-447(in Chinese)(黄海，徐明，徐济等.原子能科学技术，1996,30(5):444-447)4. http: / / physics. nist . gov/ cgi-bin/ Xcom/ xcom3_2

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

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