Pressyanov D S
Laboratory of Dosimetry and Radiation Protection, Faculty of Physics, St. Kliment Ohridski University of Sofia, Bulgaria.
Health Phys. 1995 Feb;68(2):261-5. doi: 10.1097/00004032-199502000-00011.
A method for determining time integrated concentrations of 212Pb and 212Bi in the air is proposed. It employs solid state nuclear track detectors covered with an absorber and placed around a rotating filter. Results from experiments carried out in an artificial 220Rn atmosphere have been presented. They reveal that the method works within the range of integrated concentrations for indoor measurements. The experimental error was about 7% for 212Pb and 23% for 212Bi. Possibilities for improving the accuracy have been discussed.
提出了一种测定空气中212Pb和212Bi时间积分浓度的方法。该方法采用覆盖有吸收体并放置在旋转滤器周围的固态核径迹探测器。给出了在人工220Rn气氛中进行的实验结果。结果表明，该方法在室内测量的积分浓度范围内有效。212Pb的实验误差约为7%，212Bi的实验误差约为23%。讨论了提高精度的可能性。
