论文标题
katrin差分抽水的中性trip气减少
Neutral tritium gas reduction in the KATRIN differential pumping sections
论文作者
论文摘要
Karlsruhe中微子实验（Katrin）旨在测量有效的电子抗神经质量，其前所未有的敏感性为$ 0.2 \，\ Mathrm {ev}/\ mathrm {c}^2 $，使用$β$ -Electrons trim decay decay。电子通过从无窗的气态tri源的真空束线系统通过差分和低温泵送截面到高分辨率光谱仪和分段的硅销探测器的磁性磁铁系统的磁性引导。同时，必须防止Tritium Gas进入光谱仪。因此，泵送截面必须将tri缩的流量减少超过14个数量级。本文介绍了在Katrin实验的第一个测量运动中，用高纯度tri含量进行的差分抽水部分的还原因子的测量值进行了测量。将还原因子的结果与先前进行的模拟以及Katrin实验的严格要求进行了比较。
The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to measure the effective electron anti-neutrino mass with an unprecedented sensitivity of $0.2\,\mathrm{eV}/\mathrm{c}^2$, using $β$-electrons from tritium decay. The electrons are guided magnetically by a system of superconducting magnets through a vacuum beamline from the windowless gaseous tritium source through differential and cryogenic pumping sections to a high resolution spectrometer and a segmented silicon pin detector. At the same time tritium gas has to be prevented from entering the spectrometer. Therefore, the pumping sections have to reduce the tritium flow by more than 14 orders of magnitude. This paper describes the measurement of the reduction factor of the differential pumping section performed with high purity tritium gas during the first measurement campaigns of the KATRIN experiment. The reduction factor results are compared with previously performed simulations, as well as the stringent requirements of the KATRIN experiment.
