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Title: Progress on the study of self-interaction of a bunch in a bend

When a short (mm-length) bunch with high (nC-regime) charge is transported through a magnetic bending system, self-interaction via coherent synchrotron radiation and space charge may cause emittance growth. Earlier the authors studied analytically the shielded transient self-interaction of a rigid-line bunch entering from a straight path to a circular orbit, and estimated the concomitant emittance degradation in parts of Jefferson Lab`s infrared free-electron laser (IR-FEL). In this paper, they generalize their earlier results by calculating the curvature-induced steady-state longitudinal wakefield on particles with transverse offsets from the design orbit. Recent progress in developing a self-consistent simulation are also presented.
Authors:
; ;  [1]
  1. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Publication Date:
OSTI Identifier:
576062
Report Number(s):
DOE/ER/40150--1172; JLAB-ACP--97-10;CONF-970885--
ON: DE98000778; TRN: 98:009242
DOE Contract Number:
AC05-84ER40150
Resource Type:
Conference
Resource Relation:
Conference: FEL `97: international free electron laser conference and 4. free electron laser users` workshop, Beijing (China), 18-22 Aug 1997; Other Information: PBD: 1997
Research Org:
Southeastern Universities Research Association, Inc., Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Energy Research, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM BUNCHING; BEAM EMITTANCE; BEAM BENDING MAGNETS; SPACE CHARGE; BEAM DYNAMICS