Skip to main content
Open Access Publications from the University of California

Re-circulating linac vacuum system


The vacuum system for a proposed 2.5 GeV, 10MuA recirculating linac synchrotron light source [1] is readily achievable with conventional vacuum hardware and established fabrication processes. Some of the difficult technical challenges associated with synchrotron light source storage rings are sidestepped by the relatively low beam current and short beam lifetime requirements of a re-circulating linac. This minimal lifetime requirement leads directly to relatively high limits on the background gas pressure through much of the facility. The 10MuA average beam current produces very little synchrotron radiation induced gas desorption and thus the need for an ante-chamber in the vacuum chamber is eliminated. In the arc bend magnets, and the insertion devices, the vacuum chamber dimensions can be selected to balance the coherent synchrotro n radiation and resistive wall wakefield effects, while maintaining the modest limits on the gas pressure and minimal outgassing.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View