Measurement of vacuum pressure with a magneto-optical trap: A pressure-rise method

被引：28

作者：

Moore, Rowan W. G. ^{[1
]}

Lee, Lucie A. ^{[1
]}

Findlay, Elizabeth A. ^{[1
]}

Torralbo-Campo, Lara ^{[1
]}

Bruce, Graham D. ^{[1
]}

Cassettari, Donatella ^{[1
]}

机构：

[1] Univ St Andrews, SUPA Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

CLOCKS;

D O I：

10.1063/1.4928154

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The lifetime of an atom trap is often limited by the presence of residual background gases in the vacuum chamber. This leads to the lifetime being inversely proportional to the pressure. Here, we use this dependence to estimate the pressure and to obtain pressure rate-of-rise curves, which are commonly used in vacuum science to evaluate the performance of a system. We observe different rates of pressure increase in response to different levels of outgassing in our system. Therefore, we suggest that this is a sensitive method which will find useful applications in cold atom systems, in particular, where the inclusion of a standard vacuum gauge is impractical. (C) 2015 AIP Publishing LLC.

引用

页数：4

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