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一、引言监督和测量γ射线、X射线和高能电子束的剂量仪器很多,但大多数是测量微弱剂量的。对高剂量的测量,目前主要采用化学剂量测量方法。近几年来也有用电离室测量高剂量的,但在工业生产方面专门用来测量高剂量的仪器还很少见。这对从事操作大型γ辐射源装置、X光机和粒子加速器的人员来说,带来了很大的困难。如果有了能测量高剂量率的仪器,就能立即测出这些辐射源所造成的剂量大小和分布,可作为监督、防护和使用辐射源的依据。
I. INTRODUCTION There are many dosimeters that monitor and measure γ-rays, X-rays, and high-energy electron beams, but most measure weak doses. For high-dose measurement, the main method of chemical dose measurement. In recent years there have also been very few instruments that measure ionization chambers at high doses, but are specifically designed to measure high doses in industrial production. This poses great difficulties for personnel working with large gamma radiation sources, X-ray machines and particle accelerators. With instruments capable of measuring high dose rates, the size and distribution of the dose caused by these radiation sources can be measured immediately and can be used as a basis for monitoring, protecting and using radiation sources.