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Title: Complete multipactor suppression in an X-band dielectric-loaded accelerating structure

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4949334· OSTI ID:1323324
 [1]; ORCiD logo [2];  [2];  [3]
  1. Euclid Techlabs, LLC, Solon, OH (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Naval Research Lab., Washington, DC (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
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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
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

References (8)

Stimulated dielectric wake-field accelerator journal October 1997
Femtosecond planar electron beam source for micron-scale dielectric wake field accelerator journal December 2001
High-Gradient Millimeter-Wave Accelerator on a Planar Dielectric Substrate journal August 2001
Observation of Multipactor in an Alumina-Based Dielectric-Loaded Accelerating Structure journal April 2004
The effects of magnetic field on single-surface resonant multipactor journal September 2011
Observation of multipactor suppression in a dielectric-loaded accelerating structure using an applied axial magnetic field journal November 2013
RF Linear Accelerators book January 2008
High-Gradient Millimeter-Wave Accelerator on a Planar Dielectric Substrate text January 2001

Cited By (1)

Study of multipactor suppression of microwave components using perforated waveguide technology for space applications journal May 2017

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Related Subjects

43 PARTICLE ACCELERATORS
electronic test equipment
frequency measurement
electromagnetic coils
dielectric materials
multipactor discharges
multipactor effect
atomic layer deposition
pulse generators
particle acceleration
magnetic fields