Nuclear Engineering Seibersdorf GmbH, Seibersdorf, Austria.
Health Phys. 2012 Aug;103(2 Suppl 2):S124-30. doi: 10.1097/HP.0b013e31824e6f97.
Detector efficiencies and self-absorption factors for a variety of sample preparation methods and naturally occurring dissolved ions have been studied for the gross alpha and gross beta measurement of water samples. The most consistent results are obtained for samples prepared by evaporation of small volumes of water under an infrared lamp. Due to its uniform and homogeneous deposition in the cupped stainless steel planchet, CaCO₃ was found to best serve as the dry residue radionuclide carrier in this study. Detector efficiencies and self-absorption factors for gross alpha and gross beta measurements closely follow the expected exponential and logarithmic dependence, respectively.
已研究了各种样品制备方法和天然溶解离子的探测器效率和自吸收因子，用于水样的总α和总β测量。通过在红外灯下蒸发少量水来制备样品时，可获得最一致的结果。由于在带杯的不锈钢样片上均匀且均匀地沉积，因此在本研究中，CaCO₃被发现是最好的干残渣放射性核素载体。总α和总β测量的探测器效率和自吸收因子分别密切遵循预期的指数和对数依赖性。
