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[S2010剂量仪的能量和角度灵敏度]

[Energy and angular sensitivity of the S2010 dosimeter].

作者信息

Vladimirov L V, Voronin K V, Kostyleva Iu G, Smerdova L A

出版信息

Med Tekh. 1997 Sep-Oct(5):33-5.

PMID:9445979
Abstract

Based on the requirements to x-ray equipment and its modern characteristics, the authors validate the 5-130 keV range for radiation registration in radiation control of x-ray examination rooms. Experimentally derived graphic representation of the sensitivity of S2010 dosimeter in this energy interval shows that the error of measurements of radiation less than 26 keV is exceedingly over 25%, recorded in the certificate. Experimentally determined angular anisotropy for the 109Cd radiation shows that a corporal angle of 0.04 pi sr corresponds to a relative sensitivity of 0.8. The narrow aperture of the pickup necessitates its careful orientation during measurements. The proper background of the dosimeter is 0.05 mR/h in the 4 to 14 keV range and 0.01 mR/h in the 14 to 140 keV range with the external background equal to 1.5 microR/h.

摘要

基于对X射线设备的要求及其现代特性,作者验证了在X射线检查室辐射控制中进行辐射记录的5 - 130 keV范围。在此能量区间内,通过实验得出的S2010剂量计灵敏度的图形表示表明,小于26 keV的辐射测量误差超过证书中记录的25%。实验确定的109Cd辐射的角各向异性表明,0.04π sr的立体角对应于0.8的相对灵敏度。探测器的窄孔径使得在测量过程中需要仔细定向。剂量计在4至14 keV范围内的本底合适值为0.05 mR/h,在14至140 keV范围内为0.01 mR/h,外部本底等于1.5 μR/h。

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