Jílek K, Thomas J, Brabec M
National Radiation Protection Institute, Department of Radon Expert Group, Prague, Czech Republic.
Radiat Prot Dosimetry. 2008;130(1):43-7. doi: 10.1093/rpd/ncn113. Epub 2008 Apr 24.
To subserve the institutional research and tasks coming out from the Czech National Radon Programme, a new QA programme to calibrate all the known types of devices that measure radon and its short-lived progeny was developed at the Department of Radon mobile group of the National Radiation Protection Institute (NRPI) at Prague. The programme also included calibration of instruments measuring a unique quantity of unattached and attached fractions of short- lived radon progeny Generally, NRPI declares estimation of radon concentration during all routine calibration measurements with an overall uncertainty <5% (one sigma) and of equilibrium-equivalent radon concentration with an overall uncertainty <10% (one sigma). The results of the comparative measurements of the unattached and attached fractions of each short-lived radon progeny carried out with a comparing continuous monitor Fritra 4 in the German reference radon chamber at PTB Braunschweig indicated an acceptable level of agreement, up to 10%.
为服务于捷克国家氡计划产生的机构研究和任务，布拉格国家辐射防护研究所（NRPI）氡移动小组开发了一个新的质量保证计划，用于校准所有已知类型的测量氡及其短寿命子体的设备。该计划还包括对测量短寿命氡子体未附着和附着部分独特数量的仪器进行校准。一般来说，NRPI宣称在所有常规校准测量中氡浓度的估计总体不确定度<5%（1σ），平衡当量氡浓度的估计总体不确定度<10%（1σ）。在德国布伦瑞克PTB的参考氡室中，使用比较式连续监测仪Fritra 4对每种短寿命氡子体的未附着和附着部分进行比较测量的结果表明，一致性水平可接受，高达10%。
