Influence of background pressure on the stability region of a Paul trap
Influence of background pressure on the stability region of a Paul trap
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DOI：
10.1088/0143-0807/22/6/301
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发表时间：
2001-09
影响因子：
0.7
通讯作者：
M. Nasse;C. Foot
中科院分区：
文献类型：
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作者：
M. Nasse;C. Foot
我们报告了具有非常强阻尼的保罗陷阱的稳定区域的实验测量，其中陷阱参数q高达无阻尼最大值的25倍。我们测量了背景压力从大气降至5×10-2毫巴的带电粒子稳定捕获区域。我们在最高压力下观察到的稳定区域尺寸的大幅增加可以用包含阻尼项的Mathieu微分方程的数值解来解释。我们表明，在低阻尼条件下分离的稳定区域在较高的压力下合并在一起。
We report experimental measurements of the stability region of a Paul trap with very strong damping where the trapping parameter q was up to 25 times greater than the maximum value with no damping. We measured the region of stable trapping of charged particles for background pressures from atmospheric down to 5×10-2 mbar. The large increase in the size of the stability region that we observed at the highest pressure is explained by numerical solution of the Mathieu differential equation including a damping term. We show that stability regions that are separate under conditions of low damping merge together at higher pressures.