Measurement of short-lived radon progenies by simultaneous αγ-spectrometry at the German radon reference chamber
Measurement of short-lived radon progenies by simultaneous αγ-spectrometry at the German radon reference chamber
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DOI：
10.1016/s0168-9002(99)00526-4
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发表时间：
1999-09-21
影响因子：
1.4
通讯作者：
Keyser, U
中科院分区：
文献类型：
--
作者：
Paul, A;Röttger, S;Keyser, U
在德国的氡参考室中，短寿命的氡子体根据附着或未附着的分数用样管分离，然后用同时的α和伽马能谱测量它们的活度浓度。结果用平衡因子F和独立分数f(P)表示(国际放射防护委员会，ICRP出版物50，ANN)。ICRP17(1987)1)。因此，F和f(P)都可以相对于全套环境参数进行研究，例如温度、湿度、大气压力和气溶胶浓度(Honig等人，Nucl.实例。还有梅斯。A 416(1998)525)。到目前为止，在0.1-1.0的区间内已经建立了定义明确、稳定的均衡因素。与此相关的是，非结合分数可以在0.01至0.9之间变化。这项工作所描述的短寿命氡子体的取样和测量技术是关于平衡因子和独立分数的基础研究以及作为校准设备应用的基础。(C)1999 Elsevier Science B.V.保留所有权利。
In the German radon reference chamber, the short-lived radon progenies are separated by a sample tube according to the attached or unattached fraction, while their activity concentration is afterwards measured by simultaneous alpha- and gamma-spectrometry. The results are expressed by the equilibrium factor F and the unattached fraction f(p) (International Commission on Radiological Protection, ICRP Publication 50, Ann. ICRP 17 (1987) 1). Both F and f(p), can be therefore studied with respect to the full set of environmental parameters, e.g. temperature, humidity, air pressure and aerosol concentration (Honig et al., Nucl. Instr. and Meth. A 416 (1998) 525). Up to now, well-defined and stable equilibrium factors in the interval from 0.1 to 1.0 have been established. In correlation with this, the unattached fraction can be varied from 0.01 to 0.9. The sample and measuring technique for the short-lived radon progenies described in this work is the basis for fundamental studies with regard to the equilibrium factor and the unattached fraction as well as for application as a calibration facility. (C) 1999 Elsevier Science B.V. All rights reserved.