Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors

GUI Jian-Bao; GUO Jin-Chuan; YANG Qin-Lao; NIU Han-Ben

Chinese Physics C> 2007, Vol. 31> Issue(10) : 933-937

Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors

Institute of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China2 Institute of Optoelectronics, Shenzhen University, Shenzhen 518060, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The response of three semiconductor materials, polycrystalline HgI₂, amorphous Se and polycrystalline CdTe, used for large area direct conversion detectors, is simulated by Monte Carlo method for X-ray photons in the diagnostic energy range (10—100keV). The simulation involves the transmission spectra, backscatting spectra, absorption efficiency and charge sensitivity. The interaction process between X-ray photons and the conversion materials is simulated by EGSnrc Monte Carlo code system and for the generation of signal charges Gaussian noise and the collection of partial charges are taken into account. The results show that deep traps in materials can affect largely detecting sensitivity when the mean free length (Schubweg) of carriers is less than the materials thickness. The sensitivity of HgI₂ is 5 times higher than that of amorphous Se and CdTe is 10 times higher than amorphous Se, it can be seen that a high Z material can improve the detecting sensitivity greatly.

References

[1]

. Haghigat A, Jeraj R, NewhauserWet al. Med. Phys., 2006,33: 21322. Strigari Lidia, Menghi Enrico, D'Andrea Marco et al. Med.Phys., 2006, 33: 33833. Kum. Med. Phys., 2006, 33: 21224. Ay M R, Sarkar S, Shahriari M et al. Med. Phys., 2005, 32:16605. Korn Alexander, Giersch Juergen, Hoheisel Martin. Proc.SPIE, 2005, 5745: 2926. Hoheisel Martin, Giersch Jurgen, Mitschke Michaela et al.Proc. SPIE, 2004, 5368: 3867. Guerra Del, Nelson W R, Russso P. Nuclear Instrumentsand Methods in Physics Research, 1991, A306: 3788. Conti M, Guerra A Del, Mazzei D et al. Nuclear Instru-ments and Methods in Physics Research, 1992, A322: 5919. Olmos P, Perez J M, Garcia-Belmonte G et al. Nuclear In-struments and Methods in Physics Research, 1991, A302:9110. Fano U. Phys. Rev., 1947, 72: 2611. Cavalleri G, Gatti E, Fabri G et al. Nucl. Instrum. Meth-ods, 1971, 92: 13712. Kasap S O. J. Phys. D: Appl. Phys., 2000, 33: 285313. Lederer C M, Shirley V S. Table of Isotopes. 7th Edition.New York: Wiley, 1978, 414. Storm E, Israel H I. Atom. Data Nucl. Data Tables, 1970,7: 56515. Winick Herman. X-ray Data Booklet. Lawrence BerkeleyNational Laboratory University of California, Berkeley, CA94720, 200116. Kabir M Z, Kasap S O, ZHAO W et al. IEE Proc.-CircuitsDevices Syst., 2003, 150: 25817. Yin Shi, Tumer Tumay O, Maeding Dale et al. IEEE Trans-actions on Nuclear Science, 2002, 49(1): 17618. Kolosov S A, Klevkov Yu V, Plotnikov A F. Semiconductors, 2004, 38(4): 455

[1]	CAO Shi-Ping , MA Xin-Wen . Restoration of the Signals from Multi-hit Three-Layer Delay-Line Anode Position-Sensitive Detector. Chinese Physics C, 2007, 31(3): 278-282.
[2]	ZHAO Qiang , TIAN Yi , LIU Hua-Feng . Development of a New γ-Ray Detector for PEM Applications. Chinese Physics C, 2007, 31(5): 506-508.
[3]	ZHANG Xiao-Dong , CHEN Xu-Tao , ZHANG Yi , YANG He-Run , XU Hu-Shan , DUAN Li-Min , LI Chun-Yan , LI Zu-Yu . Simulation of Micromegas Detector by Garfield Program. Chinese Physics C, 2007, 31(11): 1045-1049.
[4]	WANG Qing-Bin , Kazuyoshi Masumoto , Hideo Hirayama , Tokushi Shibata . A Measurement of the Residual Radioactivity with NaI Survey Meter and Its MC Simulation. Chinese Physics C, 2007, 31(11): 1071-1075.
[5]	DENG Zi-Yan , CAO Guo-Fu , FU Cheng-Dong , HE Miao , LIU Huai-Min , MAO Ya-Jun , XIA Yu , YOU Zheng-Yun , YUAN Ye , TANG Rui , LIU Ying-Jie , MA Qiu-Mei , MA Xiang , , , , . Object-Oriented BESⅢ Detector Simulation System. Chinese Physics C, 2006, 30(5): 371-377.
[6]	ZENG Gang , YU Zong-Qiang , YAN Yong-Lian . Beam Hardening Correction Base on Monte Carlo Simulation Method. Chinese Physics C, 2006, 30(2): 178-182.
[7]	ZHOU Yuan , HE Hui-Hai , MU Jun . Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment. Chinese Physics C, 2005, 29(8): 787-792.
[8]	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.
[9]	AN Shao-Hui , LI Cheng , XU Zi-Zong , SUN Yong-Jie , ZHOU Yi . Gain Performance of GEM Gas Detector. Chinese Physics C, 2004, 28(4): 412-416.
[10]	REN Shao-Jun , SANG Wen-Bin , JIN Wei , LI Wan-Wan , ZHANG Qi , MIN Jia-Hua . Primary Study of Monte Carlo Simulation on CdZnTe Nuclear Detector. Chinese Physics C, 2004, 28(2): 191-195.
[11]	CHEN Ming-Jun , ZHANG Feng , WANG Yi-Fang . Monte Carlo Simulation of a Water Tank of the Cerenkov Calorimeter. Chinese Physics C, 2003, 27(11): 1015-1018.
[12]	QIU You-Heng , DENG Li , YING Yang-Jun , XIAO Gang . Monte Carlo Simulation of Boron Neutron Capture Therapy. Chinese Physics C, 2003, 27(10): 936-942.
[13]	PENG Hai-Ping , SHEN Xiao-Yan , YE Shu-Wei , ZHANG Chang-Chun , LV Jun-Guang , LIU Huai-Min , ZHANG Zi-Ping , CHEN Hong-Fang . Some Improvements of BESⅡ TOF Monte Carlo Simulation. Chinese Physics C, 2002, 26(8): 861-869.
[14]	WEN Wan-Xin , JIN Gen-Ming . Numerical Simulations on Efficiency and Measurement of Capabilities of BGO Detectors for High Energy γ Ray. Chinese Physics C, 2002, 26(11): 1178-1183.
[15]	Huang Yinzhi , Cheng Baosen , Liu Huaimin , Ma Aimin , Xiong Weijun , Fan Xiaoling , Qi Nading , Zhang Dahua , Chen Shaomin , Xie Yuehong , Li Haibo , Hu Jingliang , Zhang Jinlong . Development and Application of Fast Monte Carlo Simulation Method for Beijing τ-Charm Factory (BTCF). Chinese Physics C, 1997, 21(8): 686-696.
[16]	ZHANG Li , ZHANG Ming , MU Jun , YU Chuan-Zan . Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei. Chinese Physics C, 1993, 17(7): 589-594.
[17]	LI Song-Lin , ZHU Yong-Tai , HU Xiao-Qing . ENERGY RESPONSE OF A PLASTIC DETECTOR ARRAY FOR α-PARTICLES. Chinese Physics C, 1990, 14(10): 927-930.
[18]	GU Yi-Fan , HE Jing-Tang , WANG Mao-Zi , ZHU Guo-Yi , YE Zong-Yuan , YUAN Guan-Jun , YU Pan-Shui , YANG Chun-Xiang . THE RESPONSE OF A 3×3 BGO DETECTOR ARRAY TO 0.5—21MeV PHOTONS. Chinese Physics C, 1987, 11(1): 16-23.
[19]	WANG Tai-Jie , WANG Shu-Qin , YAN Wu-Guang , HUANG Yin-Zhi , HUANG De-Qiang , LANG Peng-Fei . SIMPLIFIED MONTE CARLO SIMULATION FOR BEIJING SPECTROMETER. Chinese Physics C, 1986, 10(4): 385-392.
[20]	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.

Access

Get Citation

GUI Jian-Bao, GUO Jin-Chuan, YANG Qin-Lao and NIU Han-Ben. Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors[J]. Chinese Physics C, 2007, 31(10): 933-937.

GUI Jian-Bao, GUO Jin-Chuan, YANG Qin-Lao and NIU Han-Ben. Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors[J]. Chinese Physics C, 2007, 31(10): 933-937. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-12-05
Revised: 2007-03-09

Article Metric

Article Views(2952)
PDF Downloads(697)
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

Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors

Corresponding author: GUI Jian-Bao,

Institute of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China2 Institute of Optoelectronics, Shenzhen University, Shenzhen 518060, China

Received Date: 2006-12-05

Accepted Date: 2007-03-09

Available Online: 2007-10-05

Abstract: The response of three semiconductor materials, polycrystalline HgI₂, amorphous Se and polycrystalline CdTe, used for large area direct conversion detectors, is simulated by Monte Carlo method for X-ray photons in the diagnostic energy range (10—100keV). The simulation involves the transmission spectra, backscatting spectra, absorption efficiency and charge sensitivity. The interaction process between X-ray photons and the conversion materials is simulated by EGSnrc Monte Carlo code system and for the generation of signal charges Gaussian noise and the collection of partial charges are taken into account. The results show that deep traps in materials can affect largely detecting sensitivity when the mean free length (Schubweg) of carriers is less than the materials thickness. The sensitivity of HgI₂ is 5 times higher than that of amorphous Se and CdTe is 10 times higher than amorphous Se, it can be seen that a high Z material can improve the detecting sensitivity greatly.

HTML

Reference (1)

Use of Monte Carlo Method to Evaluate the Response of Direct Conversion X-Ray Detectors

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article