Mechanical and Vacuum Design of the Wiggler Section of the ILC Damping Rings

Mechanical and Vacuum Design of the Wiggler Section of the ILC Damping Rings
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ILC 阻尼环摆动部分的机械和真空设计

DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Zolotarev
K. Zolotarev
中科院分区：
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文献类型：
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作者：
O. Malyshev;N. Collomb;J. Lucas;S. Postlethwaite;M. Korostelev;A. Wolski;K. Zolotarev

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用于ILC阻尼环的摇摆器部分的真空容器的设计应满足许多具有挑战性的规格。在每个摇摆器中产生约40 kW的同步辐射（SR）功率。SR的膨胀扇到达后面的摆动器中的束流真空室壁，并可能导致以下问题：低温容器内的真空室壁上的大功率耗散;超导线圈的辐射损伤;高的光电子产生率导致电子云积聚到不可接受的水平。因此，应该在这些影响可以容忍或管理的地方吸收电力。讨论了解决所有SR相关问题的一些可能的解决方案以及真空设计。
The design of the vacuum vessel for the wiggler sections of the ILC damping rings should meet a number of challenging specifications. Synchrotron radiation (SR) power of about 40 kW is generated in each wiggler. The expanding fan of SR reaches the beam vacuum chamber walls in the following wiggler and may cause the following problems: large power dissipation on vacuum chamber walls inside the cryogenic vessel; radiation damage of superconducting coils; high photo-electron production rate causing electron cloud to build up to an unacceptable level. Therefore, the power should be absorbed in places where these effects are tolerable or manageable. Some possible solutions for tackling all SR related problems as well as the vacuum design are discussed.