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计数器是一种探测放射性物质的仪器,当放射性物质发出的各种粒子,如α粒子、β粒子、或γ光子射入计数器时,它便发出一个讯号,利用适当的记录仪器可以把这讯号记录下来.根据所接受讯号的次数可以知道射入计数器中的粒子的个数.从而判断放射性的强弱,放射物质的多寡和放射性物质的性质.在原子能的和平利用如原子反应堆、放射性同位素的应用中;在原子核物理和宇宙线的研究中;在放射性矿物的探测等各个方面,都广泛地使用着大量的计数器.计数器在原子能的应用中所占的地位犹如我们写字使用纸、笔一样,是一件不可缺少的工具.由于我国科学事业的大跃进,原子能的应用已逐步开展,随之对计
A counter is a device for detecting radioactive material that emits a signal when various particles of radioactive material, such as alpha particles, beta particles, or gamma photons, are incident on the counter. This signal can be recorded using a suitable recording instrument According to the number of received signals can know the number of particles injected into the counter to determine the strength of radioactivity, the amount of radioactive material and the nature of radioactive material in the peaceful use of atomic energy such as atomic reactors, the application of radioisotopes In the nuclear physics and the cosmic ray research, in the detection of radioactive minerals and other aspects, widely used a large number of counters.Counter in the application of atomic energy as we write the use of paper, pen, is An indispensable tool.As a result of the great leap forward in China's science, the application of atomic energy has been gradually carried out,