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用来研究等离子物理装置的各类真空泵都将处于特殊的工作环境中。特别是各辅助泵,如置于紧靠 放电区或等离子入射处的低温泵和吸气剂泵,都要能够处在这样极其恶劣条件下工作。这些泵必须有极 高的抽速和吸气容量,特别是对于氢尤应如此,以及必须有宽广压力范围的工作能力。使用它们时必须 要安全可靠。它们的性能应该不受下列情况的影响:有能粒子的轰击;辐射能的照射;表面吸着溅散物 质和放射性物质的存在等等。为此,文章回顾了和讨论了,非蒸散型吸气剂泵及其组件结构(就是大家 知道的沿轴径向排列吸气片式的吸气剂泵)的特性。说明在辐射、粒子轰击、真空毁损事故等情况下, 它们的工作情况和特性都符合核聚变装置中的许多要求,并且使它更好地适用于这一领域。
Various types of vacuum pumps used to study plasma physics devices are in a special work environment. In particular, auxiliary pumps, such as cryogenic pumps and getter pumps placed in close proximity to the discharge zone or plasma entry point, must be able to operate in such extreme conditions. These pumps must have extremely high pumping speed and suction capacity, especially for hydrogen, as well as the ability to work in a wide range of pressures. You must be safe and secure when using them. Their performance should not be affected by particle bombardment, irradiation of radiant energy, the presence of spatters and radioactive substances on the surface, and so on. To this end, the article reviews and discusses the characteristics of non-evaporable getter pumps and their component structures, known as axially-located getter pumps. This shows that in the case of radiation, particle bombardment, vacuum damage, etc., their performance and characteristics are in line with many of the requirements of nuclear fusion plants and make it better suited to this area.