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Title: Hot spots and dark current in advanced plasma wakefield accelerators

Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. Likewise, these electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. The strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [3] ;  [4] ;  [3] ;  [3] ;  [5] ;  [1] ;  [1] ;  [6] ;  [7] ;  [2] ;  [8]
  1. Univ. of Strathclyde, Glasgow (United Kingdom)
  2. Univ. of California, Los Angeles, CA (United States)
  3. Univ. of Hamburg (Germany)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Tech-X UK Ltd., Cheshire (United Kingdom)
  6. RadiaBeam Technologies LLC., Santa Monica, CA (United States)
  7. RadiaBeam Technologies LLC., Santa Monica, CA (United States); RadiaSoft LLC., Boulder, CO (United States)
  8. Univ. of Strathclyde, Glasgow (United Kingdom); Univ. of Hamburg (Germany)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; FG02-07ER46272; FG03-92ER40693; SC0009533; N00014-06-1-0925; EP/J018171/1; 654148; 312453
Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 19; Journal Issue: 1; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS
OSTI Identifier:
1236514
Alternate Identifier(s):
OSTI ID: 1236568