论文标题
颗粒识别和革命时间更正存储环中的等方面质谱法
Particle identification and revolution time corrections for the isochronous mass spectrometry in storage rings
论文作者
论文摘要
在在存储环上执行的等质质谱（IMS）中，通过精确测量其平均革命时间来确定短寿命核素的质量。但是，旋转时间的分布可能会因环磁场的不稳定性而严重恶化。这成为粒子识别和质量确定的重要障碍。本文描述了一种数据分析方法，该方法能够在很大程度上消除粒子识别和平均革命时间中磁场不稳定性引起的不确定性。我们表明，即使存储环的磁场慢慢达到$ΔB/b \ sim 10^{ - 4} $，该方法对于IMS实验非常有效。
In the isochronous mass spectrometry (IMS) performed at storage rings, masses of short-lived nuclides are determined through precision measurements of their mean revolution times. However, the distribution of revolution times could be seriously deteriorated by instabilities of the ring's magnetic fields. This becomes a significant obstacle for the particle identifications and mass determinations. A data analysis method is described in this paper which is able to largely remove the uncertainties caused by the magnetic field instabilities in the particle identifications and the mean revolution times. We show that this method is very effective for the IMS experiments even when the magnetic fields of a storage ring vary slowly up to a level of $ΔB/B\sim 10^{-4}$.
