Tommasino L, Tokonami S
THL, Via Cassia 1727, I-001213 Roma, Italy.
Radiat Prot Dosimetry. 2011 May;145(2-3):280-3. doi: 10.1093/rpd/ncr049. Epub 2011 Apr 11.
Four passive sampling elements (quatrefoil) have been recently developed, which transform airborne radionuclides into surface-bound radionuclides. These samplers, once exposed, result in thin radiation sources that can be detected by any real-time or passive detector. In particular, by using a large collecting-area sampler with a low surface density (g cm(-2)), it is possible to measure radon and its decay products by beta surface-contamination monitors, which are rarely used for these applications. The results obtained to date prove that it is finally possible to carry out the measurements of radon (and its decay products) indoors, in soil and in water simply by a Pancake Geiger-Muller counter. Emphasis will be given to those measurements, which are difficult, if not impossible, to carry out with existing technologies.
最近开发了四个被动采样元件（四叶形），它们将空气中的放射性核素转化为表面结合的放射性核素。这些采样器一旦暴露，就会形成薄辐射源，可被任何实时或被动探测器检测到。特别是，通过使用具有低表面密度（g cm(-2)）的大收集面积采样器，可以通过β表面污染监测器测量氡及其衰变产物，而这些监测器很少用于这些应用。迄今为止获得的结果证明，最终可以仅通过盘式盖革-弥勒计数器在室内、土壤和水中进行氡（及其衰变产物）的测量。将重点关注那些使用现有技术难以（如果不是不可能）进行的测量。
