| Title |
Ultra-Fast Harmonic Resonant Kicker Design for the MEIC Electron Circular Cooler Ring |
| Authors |
- Y.L. Huang
IMP/CAS, Lanzhou, People's Republic of China
- J. Guo, R.A. Rimmer, H. Wang, S. Wang
JLab, Newport News, Virginia, USA
|
| Abstract |
Electron cooling is essential for the proposed Medium energy Electron Ion Collider (MEIC) to attain low emittance and high luminosity. To achieve a very high electron beam current for bunched beam cooling in the future high luminosity upgrade, we adopt a circulator ring to reuse the electron bunches. The electron bunches will recirculate for 25 turns, thus the current in the ERL can be reduced by a factor of 25. An ultra-fast kicker is required for this circulator ring, with pulse width less than 2.1 ns and high repetition frequency. JLab started an LDRD proposal to develop such a kicker. Our approach is to generate a series harmonic mode with RF resonant cavities, thus every 25th bunch will be kicked while all the other bunches un-kicked. Here we present a design of a simplified prototype with every 10th bunch kicked, using 4 cavities to generate 10 harmonic modes. Cavity structure is optimized to get the highest shunt impedance, thus the total power dissipated on 4 cavities for copper material is only 87.72 W, two to three orders of magnitude lower than a strip-line kicker.
|
| Paper |
download WEICLH2063.PDF [0.859 MB / 5 pages] |
| Slides |
download WEICLH2063_TALK.PDF [2.600 MB] |
| Conference |
ERL2015, Stony Brook, NY, USA |
| Series |
ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs (56th) |
| Proceedings |
Link to full ERL2015 Proccedings |
| Session |
WG4 ERL and SRF, Stability, Synchronization, Special Requirements, HOM Dumping |
| Date |
10-Jun-15 14:00–15:45 |
| Main Classification |
WG4 ERL and SRF, Stability, Synchronization, Special Requirements, HOM Dumping |
| Keywords |
electron, cavity, ion, kicker, emittance |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Sergey Belomestnykh (FNAL, Batavia, IL, USA); Caitlin M. Hoffman (BNL, Brookhaven, NY, USA); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-183-0 |
| Published |
September 2015 |
| Copyright |
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