An Improved Correlated Sampling Method Calculating Correction Factor of Detector

WU Zhen; LI Jun-Li; CHENG Jian-Ping

Chinese Physics C> 2006, Vol. 30> Issue(8) : 771-775

An Improved Correlated Sampling Method Calculating Correction Factor of Detector

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Abstract
HTML
Reference
Related

PDF

Abstract：
In the case of a small size detector lying inside a bulk of medium, there are two problems in the correction factors calculation of the detectors. One is that the detector is too small for the particles to arrive at and collide in; the other is that the ratio of two quantities is not accurate enough. The method discussed in this paper, which combines correlated sampling with modified particle collision auto-importance sampling, and has been realized on the MCNP-4C platform, can solve these two problems. Besides, other 3 variance reduction techniques are also combined with correlated sampling respectively to calculate a simple calculating model of the correction factors of detectors. The results prove that, although all the variance reduction techniques combined with correlated sampling can improve the calculating efficiency, the method combining the modified particle collision auto-importance sampling with the correlated sampling is the most efficient one.

References

[1]

. PEI Lu-Cheng, ZHANG Xiao-Ze. Monte Carlo Methodand the Application in Particle Transport. Beijing: Science Press, 1980. 197-200(in Chinese)(裴鹿成,张孝泽.蒙特卡罗方法及其在粒子输运问题中的应用北京:科学出版社,1980.197—200)2. MA Chang-Ming, Nahum A E. Medical Physics, 1993,20(4): 1189-11993. Buckley L A, Kawrakow I, Rogers DWO. Medical Physics,2004, 31(12): 3425-34354. FAN Jia-Jin, LI Jun-Li et al. Science in China(Series E),2003, 46(3): 271-277(in Chinese)(范佳锦,李君利等.中国科学(E辑),2003,33(5):452—458)5. FAN Jia-Jin. Research of Rare But Important Events Simulation in Monte Carlo Methods. Beijing: Department of Physics Engineering, Tsinghua University, 2004. 55-58(inChinese)(范佳锦.解小概率大贡献问题的蒙特卡罗方法研究.北京：清华大学工程物理系,2004.55—58)6. Bielajew A F. Physics in Medicine and Biology, 35(4):501-5167. Hedtjarn H, Carlsson G, Williamson J F. Physics inMedicine and Biology, 2002, 47(3): 351-3768. Briesmeister J F. MCNPTM-A general Monte Carlo N-particle transport code (Version 4C): LA-13709-M-Manual.USA: Los Alamos Laboratory, 2000. 2150-2158

[1]	LI Liang , CHEN Zhi-Qiang , ZHANG Li , XING Yu-Xiang , KANG Ke-Jun . A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector. Chinese Physics C, 2006, 30(8): 812-817.
[2]	HE Hui-Lin , LI Yan-Guo , WU Bo-Bing , ZHANG Cheng-Mo , WANG Jin-Zhou , ZHANG Yong-Jie , DONG Yong-Wei . Calculation of the HXMT Detector Energy Response Matrix. Chinese Physics C, 2005, 29(7): 687-690.
[3]	ZHANG Ming-Long , XIA Yi-Ben , WANG Lin-Jun , ZHANG Wei-Li . A Suitable Material for the Substrate of Micro-Strip Gas Chamber. Chinese Physics C, 2004, 28(4): 408-411.
[4]	YI Rong-Qing , SUN Ke-Xi , YANG Guo-Hong , LIU Seng-Ye , CUI Ming-Qi , Zhao Yi-Dong , Zhu Pei-Ping . Exploration of Calibration Methods of Photoconductive Detectors Sensitivity. Chinese Physics C, 2003, 27(S1): 122-124.
[5]	FAN Sheng , YAN Fang , ZHANG Hong-Zhou , ZHAO Zhi-Xiang . A New Semiempirical Expression of Excitation Function for (n,p) Reaction. Chinese Physics C, 2003, 27(11): 1009-1014.
[6]	JIN Da-Peng , YANG Sheng-Dong , ZHAO Di-Xin , GUO Ya-Nan , ZHOU Neng-Feng , WANG Yi-Fang , LIU Zhen-An , YU Zhong-Qiang , XU Hao . Study of BES II Backgrounds. Chinese Physics C, 2003, 27(10): 846-851.
[7]	LAI Yong-Fang , GUO Yong , LI Yuan-Jing , LI Jin . Application of ANSYS in Calculating the E-Field in Gas Detectors. Chinese Physics C, 2003, 27(7): 623-627.
[8]	HU Meng-Chun , YE Wen-Ying , PENG Tai-Ping , ZHOU Dian-Zhong , WANG Zhen-Tong , ZHANG Jian-Hua , HU Qing-Yuan , YANG Hong-Qiong . A Large Dynamic Range Gamma Radiation Detector Insensitive to Neutron Radiation. Chinese Physics C, 2003, 27(4): 354-358.
[9]	ZHANG Gao-Long , JIA Wen-Bao , DAI Qiu-Sheng , YU Bo-Xiang , SU Tong-Ling . A Method of Improving the Formula of Binding Energyand Its Universal Revised Formula. Chinese Physics C, 2002, 26(3): 245-251.
[10]	CHEN Hong-Fang , LI Cheng , WANG Xiao-Lian , SHAO Ming , XU Zi-Zong , WANG Zhao-Min , HUANG Sheng-Li , RUAN Li-Juan , YE Shu-Wei , WU Jian , ZHANG Zi-Ping , ZENG Hui . A New Type Time Measurement Detector──Multigap Resistive Plate Chamber. Chinese Physics C, 2002, 26(3): 201-206.
[11]	NI GuangJiong , WANG HaiBin , YAN Jun , LI HaiLong . Lamb Shift Calculated by a Semiquantitative Method. Chinese Physics C, 2000, 24(5): 400-407.
[12]	Wang Yunyong , Wang Linzhou , Sun Hansheng , Hu Tao , Xu Zhiqing , Xie Dong . A New Method of Gas Mixture Preparation for Nuclear Detector Use. Chinese Physics C, 1994, 18(1): 1-5.
[13]	XU Yong-Xing , LIU Zhan-Wen , WEI Bao-Wen . Design Calculation of a Improved ECR Ion Source. Chinese Physics C, 1991, 15(4): 343-348.
[14]	NI Guang-Jiong , ZHANG Min , GONG Jia-Wen . A Rigorous Method for Calculating the Casimir Effect. Chinese Physics C, 1991, 15(8): 695-700.
[15]	YU Hong . A NEW METHOD FOR THE DETERMINATION OF THE SPIN OF ξ(2230). Chinese Physics C, 1989, 13(1): 87-91.
[16]	LU Jing-Xian . A METHOD FOR CALCULATING PHOTON STRUCTURE FUNCTION IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1985, 9(6): 697-702.
[17]	ZHANG Gui-Shan , ZHANG Huan-Qiao . MONTE CARLO CALCULATION OF THE EFFICIENCIES OF THE LEAD GLASS DETECTORS FOR HIGH-ENERGY GAMMA RAYS. Chinese Physics C, 1983, 7(3): 370-378.
[18]	ZHAI Peng-JI , KANG TIE-SHENG , ZHANG ZHI-YAO . . Chinese Physics C, 1983, 7(5): 649-656.
[19]	Wei Kai-yu , Lin Zhen-hua . A COMPUTATIONAL METHOD FOR THE DESIGN ENERGY HIGH INTENSITY BEAM TRANSPORT SYSTEMS. Chinese Physics C, 1980, 4(5): 555-562.
[20]	YANG CEU-LIANG . A METHOD FOR FINDING POTENTIALS CORRESPONDING TO POLYNOMIAL-FACTOR EIGENFUNCTIONS IN QUANTUM MECHANICS. Chinese Physics C, 1979, 3(5): 541-554.

Access

Get Citation

WU Zhen, LI Jun-Li and CHENG Jian-Ping. An Improved Correlated Sampling Method Calculating Correction Factor of Detector[J]. Chinese Physics C, 2006, 30(8): 771-775.

WU Zhen, LI Jun-Li and CHENG Jian-Ping. An Improved Correlated Sampling Method Calculating Correction Factor of Detector[J]. Chinese Physics C, 2006, 30(8): 771-775. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-11-21
Revised: 2005-12-21

Article Metric

Article Views(3631)
PDF Downloads(616)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

An Improved Correlated Sampling Method Calculating Correction Factor of Detector

Corresponding author: WU Zhen,

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received Date: 2005-11-21

Accepted Date: 2005-12-21

Available Online: 2006-08-05

Abstract: In the case of a small size detector lying inside a bulk of medium, there are two problems in the correction factors calculation of the detectors. One is that the detector is too small for the particles to arrive at and collide in; the other is that the ratio of two quantities is not accurate enough. The method discussed in this paper, which combines correlated sampling with modified particle collision auto-importance sampling, and has been realized on the MCNP-4C platform, can solve these two problems. Besides, other 3 variance reduction techniques are also combined with correlated sampling respectively to calculate a simple calculating model of the correction factors of detectors. The results prove that, although all the variance reduction techniques combined with correlated sampling can improve the calculating efficiency, the method combining the modified particle collision auto-importance sampling with the correlated sampling is the most efficient one.

HTML

Reference (1)

An Improved Correlated Sampling Method Calculating Correction Factor of Detector

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article