| 辐射显色薄膜电子高剂量计的剂量学特性 |
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| 引用本文： | 陈丽姝,吴靖民.辐射显色薄膜电子高剂量计的剂量学特性[J].原子能科学技术,1990,24(3):27-34. |
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| 作者姓名： | 陈丽姝 吴靖民 |
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| 作者单位： | 中国原子能科学研究院，中国原子能科学研究院，中国原子能科学研究院高能物理所，中国人民解放军总医院，军事医学科学院二所，中国原子能科学研究院 北京，北京，北京 |
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| 基金项目： | 中国原子能科学研究院(IAE)与国际原子能机构(IAEA)签订的科研合同,并取得资助合同号为No.4236/RB |
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| 摘 要： | 文章报道了用PR-CN(PVB)辐射显色薄膜测量电子吸收剂量的某些重要的剂量学特性:在0.3-120kGy范围内,吸收剂量(D)与单位厚度光密度变化(ΔOD/mm)有良好的线性关系;电子能量的依赖性小,~(147)Pm和~(90)Sr ~(90)Y响应之比约为1:2.4;对中能以上的电子剂量响应在实验误差范围内、与电子平衡条件下~(60)Co γ辐射剂量响应相同;在实验用到的平均剂量率范围内(约0.1—5×10~4Gy/min),响应和剂量率无关。建立了用于电子束工业辐射加工的吸收剂量常规刻度方法。最后给出了测量静电加速器1.5MeV、电子迴旋加速器6.9MeV电子束在有机玻璃中深部剂量分布的实例。
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| 关 键 词： | 辐射 显色 剂量计 电子 剂量学 |
RADIOMETRIC PROPERTIES OF PR-CN(PVB) RADIOCHROMIC DYE FILM DOSIMETER FOR THE MEASUREMENT OF ELECTRON DOSE |
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| CHEN LIZHU,WEN YOUQIN,WU JINMIN et al China Institute of Atomic Energy,P. O. Box ,Beijing.RADIOMETRIC PROPERTIES OF PR-CN(PVB) RADIOCHROMIC DYE FILM DOSIMETER FOR THE MEASUREMENT OF ELECTRON DOSE[J].Atomic Energy Science and Technology,1990,24(3):27-34. |
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| Authors: | CHEN LIZHU WEN YOUQIN WU JINMIN China Institute of Atomic Energy P O Box Beijing |
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| Affiliation: | CHEN LIZHU,WEN YOUQIN,WU JINMIN et al China Institute of Atomic Energy,P. O. Box 275,Beijing |
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| Abstract: | In the paper the following radiometric properties of PR-CN (PVB)radiochremic dye film dosimeter for the measurement of electron beam absorbeddose are reported; a good linear function that exists between the change in opticaldensity per unit thickness and absorbed dose in the range of 0.3 k--120kGy; asmall energy dependence; the ratio of response for ~(147)Pm and ~(90)Sr plus ~(90)Y toidentical dose which is about 1:2.4; equivalent response for gamma rays from~(60)Co and electrons with the high energy; no dose rate effects over a wide rangeof dose and dose rate; A routine method for calibration is established andexamples for measuring the depth dose distributions for electron beams from two kinds of accelerators are given. |
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| Keywords: | Radiochromic dosimeter Electron absorbed dose Radiation processing Energy dependence of response |
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