Evaluation of Zr–V–Fe getter pump for UHV system
Evaluation of Zr–V–Fe getter pump for UHV system
复制标题
特高压系统用 Zr-V-Fe 吸气泵的评估
DOI：
10.1116/1.572090
复制
发表时间：
1983
期刊：
影响因子：
--
通讯作者：
C. Lanni
中科院分区：
文献类型：
--
作者：
H. Hseuh;C. Lanni
SAES吸气器公司的非蒸发吸气器泵St707（Zr-V-Fe）可以在比St101吸气器更低的温度下激活和运行。然而，其在特高压系统中的应用尚未见报道。本文报道了St707吸气带作为一种线性分布泵在特高压系统中的特性。吸气剂在~ 400°C下激活30分钟。研究了吸气带对H2和CO的抽吸行为。吸气带对H2和CO的初始抽速分别为300 l/s和190 l/s；当H2气体负荷为~ 50 Torr l/m时，H2速度随气体负荷的增加而缓慢下降至~ 90 l/s。<500℃时的氢平衡压力不符合Sieverts定律，而高于SAES Getter公司的预测。讨论了St707吸气带在ISABELLE特高压系统中的应用。
The nonevaporable getter pump St707(Zr–V–Fe) from SAES Getters, Inc. may be activated and operated at lower temperatures than those for the St101 getter. However, its application to a UHV system has not been reported yet. This paper reports the characteristics of the St707 getter strip in a UHV system as a linearly distributed pump. The getter is activated at ∼400 °C for 30 min. The pumping behavior of the getter strip for H2 and CO is studied. The initial pumping speeds per meter of the getter strip for H2 and CO are 300 and 190 l/s, respectively; the H2 speed decreases slowly with increasing gas load to ∼90 l/s at H2 gas loading of ∼50 Torr l/m. Hydrogen equilibrium pressure at temperature <500 °C does not follow the Sieverts law and is higher that that predicted by SAES Getter, Inc. The application of St707 getter strip to the UHV system of ISABELLE is also discussed.