Measurements of the Photon Spectrum of the Fast Reactor Working on Pulsed Condition

LEI Jia-Rong; YUAN Yong-Gang; WEI Yong; ZHAO Min-Zhi

Chinese Physics C> 2006, Vol. 30> Issue(8) : 736-739

Measurements of the Photon Spectrum of the Fast Reactor Working on Pulsed Condition

Chinese Academy of Engineering Physics, Institute of Nuclear Physics and Chemistry, Mianyang 621900, China

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Abstract：
The photon attenuation effects are different, when the photons with different energy pass through the attenuators with different thickness and material. Using the above attenuators and the thermoluminescent probes, the degrader detector was designed for detecting the gamma spectrum of the fast reactor. Meanwhile the unfolding Program is programmed for the continuous spectrum in GRAVEL algorithm, and this program is proved reliable by experimental results. Finally, the photon spectrum of the fast reactor is given.

References

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. LEI Jia-Rong, YUAN Yong-Gang, ZHAO Min-Zhi et al.Journal of Physics, 2003, 52(1): 53-57(in Chinese)(雷家荣,袁永刚,赵敏智等.物理学报,2003,52(1):53—57)2. Noltet R, Behrent R. Radiation Protection Dosimetry,1999, 84(1-4): 367-3793. XU Shu-Yuan. Applications of the Monte Carlo Methodin Experimental Nuclear Physics. Beijing: Atomic EnergyPress, 1996. 10-12(in Chinese)(许淑艳.蒙特卡罗方法在实验核物理中的应用.北京:原子能出版社,1996.10—124. Briesmeister J F. MCNP|A General Monte Carlo N-Particle Transport Code: LA-12625-M. US: Los AlamosNational Laboratory, 19975. Shtejer-Diaz K et al. Applied Radiation and Isotopes, 2003,59: 263-2666. Rodriguez M L. Health Physics, 2003, 85(4): 433-4377. Matzke M. Unfolding of Pulse Height Spectra: TheHEPRO Program System: PTB-N-19. Braunschweig:Physikalisch Technische Bundesanstalt, 19948. Reginatto M, Goldhagen P. A Computer Code for the De-convolution of Multisphere Neutron Spectrometer Data Us-ing the Maximum Entropy Method: EML-595. New York:Environmental Measurements Laboratory, 19989. McElroy W N et al. A Computer-Automated IterativeMethod for Neutron Flux Spectra Determination by FoilActivation: AFWL-TR-67-41. U S: Air Force WeaponsLaboratory, 196710. LEI Jia-Rong, YUAN Yong-Gang, ZHAO Lin et al. NuclearElectronics Detection Technology, 1999, 19(2): 123-126(in Chinese)(雷家荣,袁永刚,赵林等.核电子学与探测技术,1999,19(2):123—126)11. Robertson M E A. Identiˉcation and Reduction of Errorsin Thermoluminescence Dosimetry System. England: D.A.Pitman Ltd. Weybridge, Surrey, 1981. 6

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LEI Jia-Rong, YUAN Yong-Gang, WEI Yong and ZHAO Min-Zhi. Measurements of the Photon Spectrum of the Fast Reactor Working on Pulsed Condition[J]. Chinese Physics C, 2006, 30(8): 736-739.

LEI Jia-Rong, YUAN Yong-Gang, WEI Yong and ZHAO Min-Zhi. Measurements of the Photon Spectrum of the Fast Reactor Working on Pulsed Condition[J]. Chinese Physics C, 2006, 30(8): 736-739. shu

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Received: 2005-11-30
Revised: 2006-02-26

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurements of the Photon Spectrum of the Fast Reactor Working on Pulsed Condition

Corresponding author: WEI Yong,

Chinese Academy of Engineering Physics, Institute of Nuclear Physics and Chemistry, Mianyang 621900, China

Received Date: 2005-11-30
Accepted Date: 2006-02-26
Available Online: 2006-08-05

Abstract: The photon attenuation effects are different, when the photons with different energy pass through the attenuators with different thickness and material. Using the above attenuators and the thermoluminescent probes, the degrader detector was designed for detecting the gamma spectrum of the fast reactor. Meanwhile the unfolding Program is programmed for the continuous spectrum in GRAVEL algorithm, and this program is proved reliable by experimental results. Finally, the photon spectrum of the fast reactor is given.