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Title: Two-Channel Rectangular Dielectric Wake Field Accelerator Structure Experiment

A design is presented for a two-channel 30-GHz rectangular dielectric wake field accelerator structure being built for experimental tests at Argonne National Laboratory (ANL). This structure allows for a transformer ratio T much greater than two, and permits continuous coupling of energy from drive bunches to accelerated bunches. It consists of three planar slabs of cordierite ceramic ({epsilon} = 4.7) supported within a rectangular copper block, forming a drive channel 12 mmx6 mm, and an accelerator channel 2 mmx6 mm. When driven by a 50 nC, 14 MeV single bunch available at ANL, theory predicts an acceleration field of 6 MeV/m, and T = 12.6. Inherent transverse wake forces introduce deflections and some distortion of bunch profiles during transit through the structure that are estimated to be tolerable. Additionally, a cylindrical two-channel DWFA is introduced which shares many advantages of the rectangular structure including high T, and the added virtue of axisymmetry that eliminates lowest-order transverse deflecting forces.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [3]
  1. Omega-P, Inc., New Haven Connecticut (United States)
  2. (Ukraine)
  3. (United States)
  4. Yale University, New Haven, Connecticut (United States)
  5. Fermi National Accelerator Laboratory, Batavia, IL (United States)
  6. NSC Kharkov Institute of Physics and Technology, Kharkov (Ukraine)
Publication Date:
OSTI Identifier:
21255257
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: 10.1063/1.3080943; (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; ACCELERATION; ANL; CERAMICS; COPPER; CYLINDRICAL CONFIGURATION; DIELECTRIC MATERIALS; GHZ RANGE 01-100; MEV RANGE 01-10; MEV RANGE 10-100; SLABS; TRANSFORMERS; WAKEFIELD ACCELERATORS; WAVEGUIDES