期刊文献+

CsI(Tl)光电二极管探测器效率和输出电流的模拟

Monte Carlo Simulation of the Detection Efficiency and Output Current of CsI(Tl) Scintillation and Photoelectric Diode Detectors
下载PDF
导出
摘要 工业CT探测器由CsI(Tl)闪烁体和光电二极管器构成.用蒙特卡罗方法模拟探测器的探测效率与输出电流的大小,通过最佳探测效率求最佳晶体长度.模拟所用X射线能量为10~240keV,CsI(Tl)晶体的有效面积为1.1mm×1.1mm,长度范围为0.3~0.8cm.得到最佳晶体长度为0.5~0.6cm,探测器输出的平均电流的量级为10-10 A. The industrial CT detector is formed by CsI(Tl) scintillation and photoelectric diode detectors.The Monte Carlo method is used to simulate its detection efficiency and the size of the output current,and through it to get the best crystal length.The simulated X-ray energy is 10~240 keV,the valid area of CsI crystal is 1.1 mm×1.1 mm and its range of length is 0.3~0.8 cm.The best length of CsI crystal obtained is 0.5~0.6 cm and the size of average output current is 10-10 A.
出处 《甘肃科学学报》 2013年第1期107-111,共5页 Journal of Gansu Sciences
基金 兰州大学自然科学类中央高校基本科研专项(860452)
关键词 蒙卡模拟 探测效率 闪烁晶体长度 荧光产生 反应截面 密度函数 Monte Carlo simulation detection efficiency crystal scintillator length fluorescence generation cross section of reaction density function
  • 相关文献

参考文献14

  • 1Robley D. The Atomic NucIeus[M]. NewYork: McGraw-HillBook Company,INC. 1955. 被引量:1
  • 2Veigele Wm J.Briggs E. Bates Lfet al. X-ray Cross SectionCompilation from 0. IkeV to 2MeV[M]. Colorado : HamanScience Corporation .1971. 被引量:1
  • 3周南,丁升.电子束辐照效应的数值模拟[J].计算物理,1995,12(3):301-308. 被引量:5
  • 4Koch H W, Motz J W. Bremsstrahiung Cross-Section and RelatedData[J]. Reviews of Modem Phsics.1959.31(4) :920-955. 被引量:1
  • 5Ahmet Cengiz. Approximate Inelastic Scattering Cross Sec-tions of Electrons[J]. Radiation Physics and Chemistry, 2002.65:33-44. 被引量:1
  • 6李玉兰,李元景,许荔柏,王少锋,曹贵禄.狭长闪烁体光传输的研究[J].核电子学与探测技术,2003,23(6):534-537. 被引量:4
  • 7Wm J Veigele. Photon Cross Sections from 0. IkeV to IMeVfor Elements Z : 1 to Z : 94[J], Atomic Data and NuclearData Tables,1973,5(1) :51-111. 被引量:1
  • 8Adesida I,Shimizu R,Everhart T E. A Study of Electron Pen-etration in Solids Using a Direct Monte Carlo Approach[J].Journal of Applied Physics,1980,51(11) s5 962-5 969. 被引量:1
  • 9Kenji Murata. Spatial Distribution of Backscattered Electronsin the Scanning Electron Microscope and Electron Microprobe[J]. Journal of Applied Physics. 1974,45(9) :4 110-4 117. 被引量:1
  • 10魏彪,周密,靳冬欢,冯鹏,米德伶.狭长CsI(Tl)闪烁体发光效率的研究[J].光子学报,2006,35(1):41-46. 被引量:3

二级参考文献20

  • 1梁齐,高启安,常勇.长方塑料闪烁体光收集效率的研究[J].核技术,1994,17(8):493-498. 被引量:8
  • 2刘华峰.新型正电子发射层析成像探测理论与技术研究[M].杭州:浙江大学,2001.. 被引量:1
  • 3Haque A K F,Uddin M A,Basak A K,et al.Empirical model for the electron-impact K-shell-ionization cross sections[J].Phys Rev A,2006,73(1):012708(1-7). 被引量:1
  • 4Stephens R B,Snavely R A,Aglitskiy Y,et al.Ka fluorescence measurement of relativistic electron tran-sport in the context of fast ignition[J].Phys Rev E,2004,69(6):066414(1-7). 被引量:1
  • 5Salzmann D,Reich C,Uschmann I,et al.Theory of Ka generation by femtosecond laser-produced hot electron in thin foils[J].Phys Rev E,2002,65(3):036402(1-5). 被引量:1
  • 6Reich C,Gibbon P,Usehmarm I,et al.Yield Optimization and time structure of femtosecond laser plasma Ka sources[J].Phys Rev Lett,2000,84(21):4846-4849. 被引量:1
  • 7Park H S.High-energy Ka radiography using high-intensity,short-pulse lasers[J].Phys Plasmas,2006,13(5):056309(1-10). 被引量:1
  • 8Haque A K F,Uddin M A,Basak A K,et al.Electron-impact ionization of L-shell atomic species[J].Phys Rev A,2006,73(5):052703(1-7). 被引量:1
  • 9Khare S P,Prakash S.Electron-impact K-shell ionization of atoms[J].Phys Rev A,1989,39(12):6591-6593. 被引量:1
  • 10Uddin M A,Haque A K F,Billah M M,et al.Compu-tation of electron-impact K-shell ionization cross sections of atoms[J].Phys Rev A,2005,71 (3):032715(1-6). 被引量:1

共引文献22

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部