Cardoso J, Carvalho A F, Oliveira C
Instituto Tecnológico e Nuclear, Departamento de Protecção Radiológica e Segurança Nuclear, Estrada Nacional 10 Apartado 21, 2686-953 Sacavém, Portugal.
Radiat Prot Dosimetry. 2007;125(1-4):175-9. doi: 10.1093/rpd/ncm207. Epub 2007 Jun 13.
A prototype ionisation chamber for direct measurement of the personal dose equivalent, Hp(10), similar to the one developed by the Physikalisch-Technische Bundesantalt (PTB), was designed and constructed by the Metrological Laboratory of Ionizing Radiation (LMRI) of Nuclear and Technological Institute (ITN). Tests already performed have shown that the behaviour of this chamber is very similar to the PTB chamber, mainly the energy dependence for the X-ray radiation qualities of the ISO 4037-1 narrow series N-30, N-40, N-60, N-80, N-100 and N-120 and also for gamma radiation of 137Cs and 60Co. However, the results obtained also show a dependence on the energy and angles of incident radiation and a low magnitude of the electrical response of the ionisation chamber. In order to optimise the performance of the chamber, the LMRI initiated numerical simulation of this ionisation chamber by Monte Carlo method using the MCNPX code.
核技术研究所（ITN）的电离辐射计量实验室（LMRI）设计并制造了一种用于直接测量个人剂量当量Hp(10)的原型电离室，它类似于德国物理技术联邦研究院（PTB）开发的电离室。已经进行的测试表明，该电离室的性能与PTB电离室非常相似，主要体现在对ISO 4037-1窄系列N-30、N-40、N-60、N-80、N-100和N-120的X射线辐射品质以及137Cs和60Co的伽马辐射的能量依赖性方面。然而，所获得的结果也显示出对入射辐射的能量和角度存在依赖性，并且电离室的电响应幅度较低。为了优化该电离室的性能，LMRI使用MCNPX代码通过蒙特卡罗方法对该电离室进行了数值模拟。
