Speaker
Description
The High Energy Photon Source (HEPS), recently commissioned in Beijing, is a 6 GeV diffraction-limited storage-ring light source. A double-frequency RF system was adopted, comprising five 166.6 MHz superconducting RF (SRF) cavities acting as the fundamental and two 499.8 MHz SRF cavities serving as the third harmonic for bunch lengthening. A β=1 quarter-wave SRF cavity was developed in-house to achieve the low RF frequency and high power within a compact longitudinal space, while also enabling heavy damping of higher order modes. Solid-state amplifiers provide a total installed RF power of 2.4 MW to drive the cavities in both the booster and the storage ring. A digital low-level RF system was also developed in-house and is current in stable operation. A beam current of 100 mA was successfully achieved using the nominal SRF setup. The design, construction, and commissioning results of the HEPS RF system are presented.
Funding Agency
National Natural Science Foundation of China (Grant No. 12275285, 12475166 and 12275287). High Energy Photon Source, National Development and Reform Commission of China.
| In which format do you inted to submit your paper? | LaTeX |
|---|