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Title: Sensitivity of echo enabled harmonic generation to sinusoidal electron beam energy structure

Here, we analytically examine the bunching factor spectrum of a relativistic electron beam with sinusoidal energy structure that then undergoes an echo-enabled harmonic generation (EEHG) transformation to produce high harmonics. The performance is found to be described primarily by a simple scaling parameter. The dependence of the bunching amplitude on fluctuations of critical parameters is derived analytically, and compared with simulations. Where applicable, EEHG is also compared with high gain harmonic generation (HGHG) and we find that EEHG is generally less sensitive to several types of energy structure. In the presence of intermediate frequency modulations like those produced by the microbunching instability, EEHG has a substantially narrower intrinsic bunching pedestal.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Shanghai Jiao Tong Univ., Shanghai (China)
Publication Date:
Report Number(s):
SLAC-PUB-17107
Journal ID: ISSN 2469-9888; PRABCJ
Grant/Contract Number:
AC02-76SF00515; 2012-SLAC-10032; 11327902; 2015CB859700
Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 20; Journal Issue: 6; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS
OSTI Identifier:
1364452
Alternate Identifier(s):
OSTI ID: 1369339