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In order to better apply the NaI scintillation spectrometer to bremsstrahlung measurements, the energy response function of a NaI detector spectrometer system is studied by using 137Cs and 60Co sources based on Monte Carlo N particle transport code (MCNP) process. Simulated and measured almighty peak efficiency are in good agreement. An energy response matrix (ERM) is obtained by simulating photons with a certain energy incident on the NaI crystal in MCNP process, through deconvoluting the detected spectrum of NaI using the ERM, and the results of the deconvolution accord well with those from the original spectrum. Furthermore, the NaI detector is used to preliminarily detect its response to bremsstrahlung generated by high intensity electrons bombarding a target of 1.5 mm thickness.
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Keywords:
- efficiency calibration /
- sodium iodide spectrometer /
- Monte Carlo N particle transport code /
- energy response matrix
[1] Xu H B, Peng X K, Chen C B 2010 Chin. Phys. B 19 062901
[2] Wei X H, Li Q F, Yan H Y 2009 Acta Phys. Sin. 58 2313(in Chinese)[魏熙晔, 李泉凤, 严慧勇 2009 物理学报 58 2313]
[3] Byun S H, Prestwich W V, Chin K, McNeill F E, Chettle D R 2004 Nucl. Instrum. Methods Phys. Res. A 535 674
[4] Lamoureux M, Charles P 2006 Radiat. Phys. Chem. 75 1220
[5] Ye Z Y, Li Y B, Ding S Y, Bao Z Y, Yang X Y, Rong C F, Ding X X, Zheng J M 1994 Chin. Phys. Lett. 11 12
[6] Starfelt N, Koch H W 1956 Phys. Rev. 102 1598
[7] Wu Z H, Zhao G Q, Shen N X 1997 Nuclear Physics Experiments (Beijing: Atomic Energy Press) p266 (in Chinese)[吴治华, 赵国庆, 沈能学 1997 原子核物理实验方法 (北京: 原子能出版社) 第266页]
[8] Miri H H, Panjeh H, Vejdani-Noghreiyan A 2007 Appl. Radiat. Isot. 65 918
[9] Templin L J 1963 Reactor Physics Constants ANL-5800 pp652-657
[10] Lin C S 2005 Numerical Methods (Vol. 2) (Beijing: Science Press) pp47-59 (in Chinese)[林成森 2005 数值计算方法(第二册) (北京: 科学出版社) 第47-59页]
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[1] Xu H B, Peng X K, Chen C B 2010 Chin. Phys. B 19 062901
[2] Wei X H, Li Q F, Yan H Y 2009 Acta Phys. Sin. 58 2313(in Chinese)[魏熙晔, 李泉凤, 严慧勇 2009 物理学报 58 2313]
[3] Byun S H, Prestwich W V, Chin K, McNeill F E, Chettle D R 2004 Nucl. Instrum. Methods Phys. Res. A 535 674
[4] Lamoureux M, Charles P 2006 Radiat. Phys. Chem. 75 1220
[5] Ye Z Y, Li Y B, Ding S Y, Bao Z Y, Yang X Y, Rong C F, Ding X X, Zheng J M 1994 Chin. Phys. Lett. 11 12
[6] Starfelt N, Koch H W 1956 Phys. Rev. 102 1598
[7] Wu Z H, Zhao G Q, Shen N X 1997 Nuclear Physics Experiments (Beijing: Atomic Energy Press) p266 (in Chinese)[吴治华, 赵国庆, 沈能学 1997 原子核物理实验方法 (北京: 原子能出版社) 第266页]
[8] Miri H H, Panjeh H, Vejdani-Noghreiyan A 2007 Appl. Radiat. Isot. 65 918
[9] Templin L J 1963 Reactor Physics Constants ANL-5800 pp652-657
[10] Lin C S 2005 Numerical Methods (Vol. 2) (Beijing: Science Press) pp47-59 (in Chinese)[林成森 2005 数值计算方法(第二册) (北京: 科学出版社) 第47-59页]
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