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Title: Update on the Development of Externally Powered Dielectric-Loaded Accelerating Structures

We report on recent progress in a program to develop an RF-driven Dielectric-Loaded Accelerating (DLA) structure, capable of supporting high gradient acceleration. Previous high power tests revealed that the earlier DLA structures suffered from multipactor and arcing at the dielectric joint. A few new DLA structures have been designed to alleviate this limitation including the coaxial coupler based DLA structure and the clamped DLA structure. These structures were recently fabricated and high power tested at the NRL X-band Magnicon facility. Results show the multipactor can be reduced by the TiN coating on the dielectric surface. Gradient of 15 MV/m has also been tested without dielectric breakdown in the test of the clamped DLA structure. Detailed results are reported, and future plans discussed.
Authors:
 [1] ;  [2] ;  [1] ; ; ; ;  [3] ;  [4] ;  [5]
  1. Euclid Techlabs, LLC, 5900 Harper Rd, Solon, OH 44139 (United States)
  2. (United States)
  3. High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
  4. Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)
  5. Icarus Research, Bethesda, MD 20814 (United States)
Publication Date:
OSTI Identifier:
21255259
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1086; Journal Issue: 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080945; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BREAKDOWN; DIELECTRIC MATERIALS; LINEAR ACCELERATORS; MICROWAVE RADIATION; TITANIUM NITRIDES