Speaker
Description
The Super Tau-Charm Facility (STCF) is a tau–charm electron-positron collider currently under design, with a projected single-bunch charge of up to 8 nC and an average beam current as high as 2 A. On-axis swapping injection is one of the feasible injection schemes; however, the high-current beam can induce severe heating effects on the electrodes of the stripline kicker. Based on theoretical derivations and CST simulations, this work systematically evaluates the longitudinal beam coupling impedance, effective impedance, loss factor, total parasitic power loss, and electrode thermal power deposition of the kicker, and subsequently performs an impedance-optimization study. The results show that both the total parasitic power loss and the electrode thermal power deposition are significantly reduced after structural optimization, with the loss factor notably improved for various bunch lengths. Further temperature-rise and mechanical-deformation analyses indicate that the maximum electrode temperature remains below the safe operating threshold for copper electrodes, and that the deformation induced by thermal expansion has a negligible impact on the electromagnetic field. In summary, the optimized stripline kicker continues to satisfy the design requirements under the high-current operation conditions of the STCF.
| In which format do you inted to submit your paper? | LaTeX |
|---|