Elliot Lake Laboratory, CANMET, Energy, Mines and Resources Canada, Elliot Lake, Ontario, Canada.
Environ Monit Assess. 1986 Jan;6(1):59-70. doi: 10.1007/BF00394288.
A technical evaluation of an automated, programmable, grab-sampler manufactured by Pylon Electronic Development under the commercial name WL-1000C has been conducted. Six different methods are implemented in the instrument for analyzing radiation data. Any one method can be used on command and easily selected by means of a keyboard. Available radiation data that can be retrieved on command include radon (thoron) daughter concentrations and radon (thoron) Working Levels. Measurements were carried out under laboratory-controlled conditions in a large (26 m(3)) radon/thoron test facility, designed for calibration purposes, and at an underground uranium mine. Data obtained with the WL-1000C have been compared with conventional grab-sampling (e.g., Kusnetz, Thomas-Tsivoglou and Markov methods) and with other automated radiation instrumentation previously tested at our laboratories. Tests were done under constant radiation conditions and also under rapidly fluctuating conditions in order to determine the response of the instruments and methods in these two cases of practial interest. The Working Level used in these experiments was in the approximate range of 0.01 to 10 WL. Tests were conducted under a variety of environmental conditions. Good agreement with grab-sampling data was found for radon daughters. Some discrepancies with grab-sampling data were found for radon daughter/thoron daughter mixtures. Disagreement in the latter case is to be expected because of α-energy overlap between RaA and ThC.
对 Pylon Electronic Development 公司以 WL-1000C 商品名制造的自动可编程抓取式采样器进行了技术评估。该仪器有 6 种不同的方法用于分析辐射数据，可通过键盘命令选择任意一种方法。可通过命令检索的辐射数据包括氡（钍）子体浓度和氡（钍）工作水平。在一个设计用于校准目的的大型（26 m3）氡/钍测试设施和一个地下铀矿中，在实验室控制的条件下进行了测量。使用 WL-1000C 获得的数据与传统的抓取式采样（例如 Kusnetz、Thomas-Tsivoglou 和 Markov 方法）以及我们实验室之前测试过的其他自动化辐射仪器进行了比较。在恒定辐射条件下和快速波动条件下进行了测试，以确定仪器和方法在这两种实际情况下的响应。这些实验中使用的工作水平约为 0.01 至 10 WL。在各种环境条件下进行了测试。发现氡子体与抓取式采样数据吻合良好。对于氡子体/钍子体混合物，与抓取式采样数据存在一些差异。在后一种情况下存在差异是意料之中的，因为 RaA 和 ThC 之间存在 α 能量重叠。
