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Title: Coherent-Radiation Spectroscopy of Few-Femtosecond Electron Bunches Using a Middle-Infrared Prism Spectrometer

Abstract

Modern, high-brightness electron beams such as those from plasma wakefield accelerators and free-electron laser linacs continue the drive to ever-shorter bunch durations. In low-charge operation ( ~ 20 pC ), bunches shorter than 10 fs are reported at the Linac Coherent Light Source (LCLS). Though suffering from a loss of phase information, spectral diagnostics remain appealing as compact, low-cost bunch duration monitors suitable for deployment in beam dynamics studies and operations instrumentation. Progress in middle-infrared (MIR) imaging has led to the development of a single-shot, MIR prism spectrometer to characterize the corresponding LCLS coherent beam radiation power spectrum for few-femtosecond scale bunch length monitoring. In this Letter, we report on the spectrometer installation as well as the temporal reconstruction of 3 to 60 fs-long LCLS electron bunch profiles using single-shot coherent transition radiation spectra.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1089163
Report Number(s):
SLAC-PUB-15692
Journal ID: ISSN 0031-9007; PRLTAO
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 111; Journal Issue: 18; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCPHY; OPTICS; XFEL

Citation Formats

Maxwell, T. J., Behrens, C., Ding, Y., Fisher, A. S., Frisch, J., Huang, Z., and Loos, H. Coherent-Radiation Spectroscopy of Few-Femtosecond Electron Bunches Using a Middle-Infrared Prism Spectrometer. United States: N. p., 2013. Web. doi:10.1103/PhysRevLett.111.184801.
Maxwell, T. J., Behrens, C., Ding, Y., Fisher, A. S., Frisch, J., Huang, Z., & Loos, H. Coherent-Radiation Spectroscopy of Few-Femtosecond Electron Bunches Using a Middle-Infrared Prism Spectrometer. United States. https://doi.org/10.1103/PhysRevLett.111.184801
Maxwell, T. J., Behrens, C., Ding, Y., Fisher, A. S., Frisch, J., Huang, Z., and Loos, H. 2013. "Coherent-Radiation Spectroscopy of Few-Femtosecond Electron Bunches Using a Middle-Infrared Prism Spectrometer". United States. https://doi.org/10.1103/PhysRevLett.111.184801. https://www.osti.gov/servlets/purl/1089163.
@article{osti_1089163,
title = {Coherent-Radiation Spectroscopy of Few-Femtosecond Electron Bunches Using a Middle-Infrared Prism Spectrometer},
author = {Maxwell, T. J. and Behrens, C. and Ding, Y. and Fisher, A. S. and Frisch, J. and Huang, Z. and Loos, H.},
abstractNote = {Modern, high-brightness electron beams such as those from plasma wakefield accelerators and free-electron laser linacs continue the drive to ever-shorter bunch durations. In low-charge operation ( ~ 20 pC ), bunches shorter than 10 fs are reported at the Linac Coherent Light Source (LCLS). Though suffering from a loss of phase information, spectral diagnostics remain appealing as compact, low-cost bunch duration monitors suitable for deployment in beam dynamics studies and operations instrumentation. Progress in middle-infrared (MIR) imaging has led to the development of a single-shot, MIR prism spectrometer to characterize the corresponding LCLS coherent beam radiation power spectrum for few-femtosecond scale bunch length monitoring. In this Letter, we report on the spectrometer installation as well as the temporal reconstruction of 3 to 60 fs-long LCLS electron bunch profiles using single-shot coherent transition radiation spectra.},
doi = {10.1103/PhysRevLett.111.184801},
url = {https://www.osti.gov/biblio/1089163}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 18,
volume = 111,
place = {United States},
year = {Mon Oct 28 00:00:00 EDT 2013},
month = {Mon Oct 28 00:00:00 EDT 2013}
}