ORBIT STABILITY AT THE SLS
ORBIT STABILITY AT THE SLS
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SLS 的轨道稳定性
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
V. Schlott
中科院分区：
文献类型：
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作者：
M. Böge;B. Keil;J. Krempaský;T. Schilcher;V. Schlott
SLS的设计允许在覆盖10个数量级（10−8−10.2 Hz）的大频率范围内实现出色的轨道稳定性。这是通过精心设计所有加速器组件，包括大梁，磁铁和电源，通过“充值”模式运行，以保证恒定的热负荷，并通过快速轨道反馈的主动稳定来实现的。后者在2003年初成功投入使用，自2003年11月以来一直在用户操作期间正常运行，接近设计性能。异常炎热的夏季对SLS的冷却系统来说是一个挑战，暴露出其容量的局限性。其中，隧道温度的临时变化对轨道中长期稳定性影响较大。
The SLS has been designed to allow for excellent orbit stability over a large frequency range covering ten orders of magnitude (10 −8−10 2 Hz). This is accomplished by the careful design of all accelerator components including girders, magnets and power supplies, by operating in “top-up” mode, which guarantees a constant thermal load, and by active stabilization by means of a fast orbit feedback. The latter was successfully commissioned at the start of 2003 and has been running routinely during user operation close to design performance since November 2003. The extraordinarily hot summer has been a challenge for the cooling system of the SLS revealing its capacity limitations. In particular, the temporary change of the tunnel temperature had a significant influence on the medium and long term orbit stability.