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Publication Information
Title Comparative Simulation Studies of Multipacting in Higher-Order-Mode Couplers of Superconducting RF Cavities
Abstract Multipacting (MP) in higher-order-mode (HOM) couplers of the International Linear Collider (ILC) baseline cavity and the Continuous Electron Beam Accelerator Facility (CEBAF) 12 GeV upgrade cavity is studied by using the ACE3P suites, developed by the Advanced Computations Department at SLAC. For the ILC cavity HOM coupler, the simulation results show that resonant trajectories exist in three zones, corresponding to an accelerating gradient range of 0.6¿1.6 MV/m, 21¿34 MV/m, 32¿35 MV/m, and > 40MV/m, respectively. For the CEBAF 12 GeV upgrade cavity HOM coupler, resonant trajectories exist in one zone, corresponding to an accelerating gradient range of 6¿13 MV/m. Potential implications of these MP barriers are discussed in the context of future high energy pulsed as well as medium energy continuous wave (CW) accelerators based on superconducting radio frequency cavities. Frequency scaling of MP¿s predicted in HOM couplers of the ILC, CBEAF upgrade, SNS and FLASH third harmonic cavity i
Author(s) Rongli Geng, Yongming Li, Kexin Liu
Publication Date February 2014
Document Type Journal Article
Primary Institution Peking University , Beijing, China
Affiliation Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Processes & Materials
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-13-1743 OSTI Number: 1121108
LANL Number: Other Number: DOE/OR/23177-3007
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physical Review Special Topics AB
Refereed Yes
Volume 17
Issue 02
Page(s) 022002
Attachments/Datasets/DOI Link
Document(s)
Comparative.pdf (STI Document)
DOI Link
Dataset(s) (none)
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