Aukett R J
Joint University, Leicester, UK.
Br J Radiol. 1991 Oct;64(766):918-22. doi: 10.1259/0007-1285-64-766-918.
A method is described in which a Farmer ionization chamber is used for the direct measurement of the air kerma rate in air from small spherical Caesium-137 sources at distances of 35 to 70 mm. The calibration factor and corrections for source and ion chamber geometry are examined. For quality assurance purposes, the results obtained are in sufficient agreement with other methods of calibration.
本文描述了一种方法,即使用 Farmer电离室直接测量距离35至70毫米的小型球形铯 - 137源在空气中的空气比释动能率。研究了源和电离室几何形状的校准因子及校正。出于质量保证目的,所得结果与其他校准方法具有足够的一致性。