Shebell P, Faller S, Monetti M, Bronson F, Hagenauer R, Jarrell C L, Keefer D, Moos J R, Panzarino N, Reiman R T, Sparks B J, Thisell M
Environmental Measurements Laboratory, U.S. Department of Homeland Security, 201 Varick Street, 5th Floor, New York, NY 10014-4811, USA.
Health Phys. 2003 Dec;85(6):662-77. doi: 10.1097/00004032-200312000-00012.
This paper provides the results of an in situ gamma-ray spectrometry intercomparison that was held from 18-21 October 1999, in Grand Junction, CO. This intercomparison was a collaborative effort between the U.S. Department of Energy's Environmental Measurements Laboratory and the U.S. Environmental Protection Agency's Office of Radiation and Indoor Air. It featured measurements of a background location and the Walker Field Calibration Pads. In this paper, the in situ gamma-ray measurements of the background location were compared to soil samples, and the in situ measurements of the Walker Field Calibration Pads were compared to corrected reference values. The results showed that 84% of the in situ gamma-ray measurements of 226Ra, 232Th, and 40K at the background location fell within 20% of the soil sample mean. Similarly, in situ gamma-ray measurements of the Walker Field Calibration Pads showed that 77% of the in situ concentrations fell within 20% of the corrected reference values.
本文给出了1999年10月18日至21日在科罗拉多州大章克申进行的一次原位伽马射线能谱比对的结果。这次比对是美国能源部环境测量实验室与美国环境保护局辐射与室内空气办公室的合作成果。它包括对一个本底场地和沃克菲尔德校准坪的测量。在本文中，将本底场地的原位伽马射线测量结果与土壤样品进行了比较，将沃克菲尔德校准坪的原位测量结果与校正后的参考值进行了比较。结果表明，本底场地226镭、232钍和40钾的原位伽马射线测量结果中，84%落在土壤样品平均值的20%范围内。同样，沃克菲尔德校准坪的原位伽马射线测量结果表明，77%的原位浓度落在校正后参考值的20%范围内。
