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Title: Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation

Abstract

Advanced accelerators for fourth generation light sources based on high brightness linacs or laser-driven wakefield accelerators will operate with intense, highly relativistic electron bunches that are only a few fs long. Diagnostic techniques for the determination of temporal profile of such bunches are required to be non invasive, single shot, economic and with the required resolution in the fs regime. The use of a radiative process such as coherent Smith-Purcell radiation (SPR), is particularly promising with this respect. In this technique the beam is made to radiate a small amount of electromagnetic radiation and the temporal profile is reconstructed from the measured spectral distribution of the radiation. We summarise the advantages of SPR and present the design parameters and preliminary results of the experiments at the FACET facility at SLAC. We also discuss a new approach to the problem of the recovery of the 'missing phase', which is essential for the accurate reconstruction of the temporal bunch profile.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1043849
Report Number(s):
SLAC-REPRINT-2012-104
Journal ID: ISSN 1748-0221; TRN: US1203203
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 7; Journal Issue: 01; Journal ID: ISSN 1748-0221
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BRIGHTNESS; DESIGN; DIAGNOSTIC TECHNIQUES; DISTRIBUTION; ECONOMICS; ELECTROMAGNETIC RADIATION; ELECTRONS; LIGHT SOURCES; LINEAR ACCELERATORS; MONITORS; RADIATIONS; RESOLUTION; STANFORD LINEAR ACCELERATOR CENTER; WAKEFIELD ACCELERATORS; Accelerators

Citation Formats

Bartolini, R., /Oxford U., JAI /Diamond Light Source /SLAC, Clarke, C., /SLAC, Delerue, N, /Oxford U., JAI /Diamond Light Source /SLAC, Doucas, G, Reichold, A, and /Oxford U., JAI. Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation. United States: N. p., 2012. Web. doi:10.1088/1748-0221/7/01/P01009.
Bartolini, R., /Oxford U., JAI /Diamond Light Source /SLAC, Clarke, C., /SLAC, Delerue, N, /Oxford U., JAI /Diamond Light Source /SLAC, Doucas, G, Reichold, A, & /Oxford U., JAI. Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation. United States. doi:10.1088/1748-0221/7/01/P01009.
Bartolini, R., /Oxford U., JAI /Diamond Light Source /SLAC, Clarke, C., /SLAC, Delerue, N, /Oxford U., JAI /Diamond Light Source /SLAC, Doucas, G, Reichold, A, and /Oxford U., JAI. Wed . "Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation". United States. doi:10.1088/1748-0221/7/01/P01009.
@article{osti_1043849,
title = {Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation},
author = {Bartolini, R. and /Oxford U., JAI /Diamond Light Source /SLAC and Clarke, C. and /SLAC and Delerue, N and /Oxford U., JAI /Diamond Light Source /SLAC and Doucas, G and Reichold, A and /Oxford U., JAI},
abstractNote = {Advanced accelerators for fourth generation light sources based on high brightness linacs or laser-driven wakefield accelerators will operate with intense, highly relativistic electron bunches that are only a few fs long. Diagnostic techniques for the determination of temporal profile of such bunches are required to be non invasive, single shot, economic and with the required resolution in the fs regime. The use of a radiative process such as coherent Smith-Purcell radiation (SPR), is particularly promising with this respect. In this technique the beam is made to radiate a small amount of electromagnetic radiation and the temporal profile is reconstructed from the measured spectral distribution of the radiation. We summarise the advantages of SPR and present the design parameters and preliminary results of the experiments at the FACET facility at SLAC. We also discuss a new approach to the problem of the recovery of the 'missing phase', which is essential for the accurate reconstruction of the temporal bunch profile.},
doi = {10.1088/1748-0221/7/01/P01009},
journal = {Journal of Instrumentation},
issn = {1748-0221},
number = 01,
volume = 7,
place = {United States},
year = {2012},
month = {6}
}