期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

球-圆柱形空腔电离室壁修正因子的实验测量 被引量：2

Measurement of the Wall Correction Factor of a Spherical-cylindrical Cavity Ionization Chamber
下载PDF
导出
摘要 对10 cm3NIM空气比释动能基准的球-圆柱形石墨空腔电离室室壁修正因子Kwall确定方法进行了研究.利用实验外推方法测量该电离室在60Co γ射线辐射场中的Kwall值,并且采用Monte Carlo(MC)模拟计算方法对实验外推方法得到的结果进行验证.实验外推和MC计算结果表明,传统的线性外推法确定的Kwall值比MC 计算得到结果的值低0.48%,比"等效平均厚度"实验外推所求得的值低0.45%.利用"等效平均厚度"对实验结果进行外推所求得的Kwall值与MC模拟计算方法得到的结果在0.02%以内吻合.
作者 胡家成 杨小元 杨元第 张辉 樊铁栓 孙吉宁 黄斐增 刘鉴常 叶卫国
机构地区 中国计量科学研究院 北京大学物理学院重离子物理研究所重离子物理教育部重点实验室
出处 《计量学报》 CSCD 北大核心 2007年第z1期256-260,共5页 Acta Metrologica Sinica
基金 国家自然科学基金(10275058)
关键词 计量学 室壁修正因子 实验外推法 电离室
分类号 TB98 [机械工程—测试计量技术及仪器]
  • 相关文献

参考文献10

  • 1[1]Rogers D W O,Bielajew A F.Wall attenuation and scatter corrections for ion chambers:measurements versus ealculations[J].Phys Med Biol,1990,35:1065～1078.
  • 2[2]Rogers D W O,Bielajew A F,Nahum A E.Ion Chamber Response and Awall Correction Factors in a 60Co Beam by Monte Carlo Simulation[J].Phys Med Biol,1985,30:429～443.
  • 3[3]Bielajew A F.Correction Factors for Thick-walled Ionization Chambers in Point-source Photon Beams[J].Phys Med Biol,1990,35:501～516.
  • 4[4]Bielajew A F.On the Technique of Extrapolation to Obtain Wall Correction Factors for Ion Chambers Irradiated by Photon Beams[J].Med Phys,1990,17:583～587.
  • 5[5]Bielajew A F,Rogers D W O.Implications of New Correction Factors on Prinary Air Kerma Standards in 60Co Beams[J].Phys Med Biol,1992,37:1283～1291.
  • 6[6]Rogers D W O,Treurniet J.Monte Carlo Calculated Wall and Axial Non-uniformity Corrections for Primary Standards of Air Kerma[R].NRC,Report PIRS-663,1999.
  • 7[7]Laitano R F,Toni M P,Pimpinella M,et al.Determination of the Kwall,Correction Factor for a Cylindrical Ionization Chamber to Measure Air-Kerma in 60Co Gamma Beams[J].Phys Med Biol,2002,47:2411～2431.
  • 8[8]Allisy-Roberts P J,Kessler C,Bums D T,et al.Comparison of the air kerma standards of the NIM and the BIPM 60Co γ rays[R].BIPM,Draft Report 01/C,2001.
  • 9胡家成,杨小元,杨元第,樊铁栓,黄斐增,刘鉴常,孙吉宁,叶卫国.球形石墨空腔电离室壁修正因子的测量与验证[J].中华放射医学与防护杂志,2005,25(6):561-564. 被引量：5
  • 10[11]Hortt K R,Rass C K.The Canadian 60Co Exposure Standard[R].NRC Report,PIRS-0052,1986.

二级参考文献10

  • 1Rogers DWO,Bielajew AF.Wall attenuation and scatter corrections for ion chambers:measurements versus calculations.Phys Med Biol,1990,35:1065-1078.
  • 2Rogers DWO,Bielajew AF,Nahum AE.Ion chamber response and Awall correction factors in a ^60 Co beam by Monte Carlo simulation.Phys Med Biol,1985,30:429-443.
  • 3Bielajew AF.Correction factors for thick-walled ionization chambers in point-source photon beams.Phys Med Biol,1990,35:501-516.
  • 4Bielajew AF.On the technique of extrapolation to obtain wall correction factors for ion chambers irradiated by photon beams.Med Phys,1990,17:583-587.
  • 5Bielajew AF,Rogers DWO.Implications of new correction factors on primary air kerma standards in ^60Co beams.Phys Med Biol,1992,37:1283-1291.
  • 6Rogers DWO,Treurniet J.Monte carlo calculated wall and axial nonuniformity corrections for primary standards of air kerma.NRCC Report PIRS-663,1999.
  • 7Laitano RF,Toni MP,Pimpinella M,et al.Determination of the Kwall correction factor for a cylindrical ionization chamber to measure air-kerma in ^60Co Gamma Beams.Phys Med Biol,2002,47:2411-2431.
  • 8Allisy-Roberts PJ,Kessler C,Bums DT,et al.Comparison of the air kerma standards of the NIM and the BIPM ^60 Co γ rays.Draft Rapport BIPM-01/C,2001.
  • 9Wyckolf MO.Measurement of Cobalt-60 and Cesium-137 gamma rays with a free-air chamber.J Rrs Nat Bus Stand(US),1960,64C:87.
  • 10Shortt KR,Rass CK.The Canadian ^60Co exposure standard.NRC Report PIRS-0052,1986.

共引文献4

同被引文献23

  • 1韩奎初.测量照射量(空气比释动能)的空腔电离室[J].核标准计量与质量,1995,0(1):33-35. 被引量：3
  • 2胡家成,杨小元,杨元第,樊铁栓,黄斐增,刘鉴常,孙吉宁,叶卫国.球形石墨空腔电离室壁修正因子的测量与验证[J].中华放射医学与防护杂志,2005,25(6):561-564. 被引量：5
  • 3刘鉴常,孙吉宁,杨小元,郭彬,叶卫国,黄斐增,杨元第,胡家成,樊铁栓.球形石墨空腔电离室壁修正因子的Monte-Carlo模拟和实验测量[J].原子能科学技术,2006,40(6):723-728. 被引量：1
  • 4Bielajew AF, Rogers DWO. Ionization Cavity Theory: a formal derivation of perturbation factors for thick-walled ion chambers in photon beams. Phys Med Biol, 1986,31 : 161-170.
  • 5Rogers DWO, Bielajew AF. Wall attenuation and scatter corrections for ion chambers: measurements versus calculations. Phys Med Biol, 1990,35 : 1065-1078.
  • 6Bielajew AF, Rogers DWO. Implications of new correction factors on primary air kerma standards in 60 Co-beams. Phys Med Biol, 1992, 37:1283-1291.
  • 7Rogers DWO, Treurniet J. Monte carlo calculated wall and axial non- uniformity corrections for primary standards of air kerma. PIRS-663, NRCC, 1999.
  • 8Laitano RF, Toni MP, Pimpinella M, et al. Determination of the K wall correction factor for a cylindrical ionization chamber to measure air-kerma in 60 Co gamma beams. Plays Mcd Biol, 2002, 47 : 2411- 2431.
  • 9Burns DT. Calculation of Kwall air-kerma standards using PENELOPE. CCRI(I)/03-40, BIPM,2003.
  • 10Allisy-Roberts PJ, Burns DT, Kessler C, et al. Dosimetry comparisons and calibrations at the BIPM 2001 to 2003. CCRI (I) /03-37, BIPM, 2003.

引证文献2

二级引证文献9

计量学报
2007年 第z1期

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