Cavity BPM system tests for the ILC energy spectrometer
Cavity BPM system tests for the ILC energy spectrometer
复制标题
ILC 能谱仪的腔体 BPM 系统测试
DOI：
10.1016/j.nima.2008.04.033
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发表时间：
2007
影响因子：
1.4
通讯作者：
M. Woods
中科院分区：
文献类型：
--
作者：
M. Slater;C. Adolphsen;R. Arnold;S. Boogert;G. Boorman;F. Gournaris;M. Hildreth;C. Hlaing;F. Jackson;O. Khainovski;Y. Kolomensky;A. Lyapin;B. Maiheu;D. McCormick;D. Miller;T. Orimoto;Z. Szalata;M. Thomson;D. Ward;M. Wing;M. Woods
国际直线对撞机（ILC）的主要物理项目要求以更高的精度测量相互作用点的束流能量。为了实现这一目标，提出了一种采用高分辨率波束位置监测器的磁谱仪。本文报告了为测试该建议而部署的腔体BPM系统。我们展示了亚微米分辨率和微米级稳定性超过20小时的$1\m$长的BPM三重组。我们发现3个BPM站分布在30美元长的基线上，在1小时内具有微米级的稳定性。从这项工作中获得的对bpm的行为和响应的理解使得可以进行完整的光谱仪测试。
The main physics programme of the International Linear Collider (ILC) requires a measurement of the beam energy at the interaction point with an accuracy ofor better. To achieve this goal a magnetic spectrometer using high resolution beam position monitors (BPMs) has been proposed. This paper reports on the cavity BPM system that was deployed to test this proposal. We demonstrate sub-micron resolution and micron level stability over 20 hours for a $1\m$ long BPM triplet. We find micron-level stability over 1 hour for 3 BPM stations distributed over a $30\m$ long baseline. The understanding of the behaviour and response of the BPMs gained from this work has allowed full spectrometer tests to be carried out.