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目前不少单位已在氦氖激光管内引入蒸散型的钡类吸气剂。非蒸散型的锆铝吸气剂有更多的优点。常温下有较大的吸气能力,特别是对H_2 的吸气能力比钡类吸气剂大很多倍。由于它的激活温度高达800～900℃,加上其它一些工艺上的困难,至今国内还未见用于氦氖激光管的制作。本文对在内腔式氦氖激光管中引进锆铝吸气剂进行简明的理论分析,设计上对激光管结构作了相应的改进。实验确定了锆铝吸气剂的放气、吸气特性,以环状同轴套放在
At present, many units have introduced evaporative barium getters in the He-Ne laser tube. Non-evaporable zirconium-aluminum getters have many advantages. Room temperature greater inspiratory capacity, especially aspiration of H 2 than barium getter is many times larger. Due to its activation temperature as high as 800 ~ 900 ℃, coupled with some other technical difficulties, so far have not seen for domestic helium-neon laser tube production. In this paper, the introduction of zirconium-aluminum getter in the lumen-type He-Ne laser tube for a concise theoretical analysis, the design of the laser tube structure made a corresponding improvement. The experiments confirmed the deflation and gettering characteristics of zirconium-aluminum getter, and placed the ring-shaped coaxial sleeve on it