Complete multipactor suppression in an X-band dielectric-loaded accelerating structure
- Euclid Techlabs, LLC, Solon, OH (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Naval Research Lab., Washington, DC (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Multipactor is a major issue limiting the gradient of rf-driven Dielectric-Loaded Accelerating (DLA) structures. Theoretical models have predicted that an axial magnetic field applied to DLA structures may completely block the multipactor discharge. However, previous attempts to demonstrate this magnetic field effect in an X-band traveling-wave DLA structure were inconclusive, due to the axial variation of the applied magnetic field, and showed only partial suppression of the multipactor loading. Here, the present experiment has been performed under improved conditions with a uniform axial magnetic field extending along the length of an X-band standing-wave DLA structure. Multipactor loading began to be continuously reduced starting from 3.5 kG applied magnetic field and was completely suppressed at ~8 kG. Dependence of multipactor suppression on the rf gradient inside the DLA structure was also measured.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC). Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR)
- Grant/Contract Number:
- AC02-06CH11357; SC0006303
- OSTI ID:
- 1323324
- Journal Information:
- Applied Physics Letters, Vol. 108, Issue 19; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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journal | May 2017 |
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