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Title: Time-resolved electron-beam characterizations with optical transition radiation

Time-resolved characterizations of electron beams using optical transition radiation (OTR) as a prompt conversion mechanism have recently been extended on the Los Alamos Free-electron Laser (FEL) facility 40-MeV linac. Two key timescales for rf-linac driven FELs are the micropulse (10 ps) and the macropulse (5 {mu}s to 1 ms). In the past we have used gated, intensified cameras to select a single or few micropulses (25 to 400 ns gate width) out of the pulse train to evaluate submacropulse effects. Recently, we have obtained some of the first measurements of micropulse bunch length (7 to 10 ps) and submacropulse spatial position and profile using OTR and a Hamamatsu streak camera. Additionally, micropulse elongation effects and head-to-tail transverse kicks are reported as a function of charge.
Authors:
 [1] ;  [2]
  1. (Argonne National Lab., IL (United States))
  2. (Los Alamos National Lab., NM (United States))
Publication Date:
OSTI Identifier:
6976009
Report Number(s):
ANL/CP-76108; CONF-9208142--3
ON: DE92041122
DOE Contract Number:
W-31109-ENG-38; W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 14. international free electron laser conference, Kobe (Japan), 23-28 Aug 1992
Research Org:
Argonne National Lab., IL (United States)
Sponsoring Org:
DOE; DOD; USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 42 ENGINEERING; FREE ELECTRON LASERS; BEAM MONITORING; LINEAR ACCELERATORS; TRANSITION RADIATION; DETECTION; ELECTRON BEAMS; PULSE TECHNIQUES; STREAK CAMERAS; ACCELERATORS; BEAMS; CAMERAS; ELECTROMAGNETIC RADIATION; LASERS; LEPTON BEAMS; MEASURING INSTRUMENTS; MONITORING; PARTICLE BEAMS; RADIATION DETECTORS; RADIATIONS 430303* -- Particle Accelerators-- Experimental Facilities & Equipment; 426002 -- Engineering-- Lasers & Masers-- (1990-)