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Title: Initial Observations of Micropulse Elongation of Electron Beams in a SCRF Accelerator

Abstract

Commissioning at the SCRF accelerator at the Fermilab Accelerator Science and Technology (FAST) Facility has included the implementation of a versatile bunch-length monitor located after the 4-dipole chicane bunch compressor for electron beam energies of 20-50 MeV and integrated charges in excess of 10 nC. The team has initially used a Hamamatsu C5680 synchroscan streak camera to assess the effects of space charge on the electron beam bunch lengths. An Al-coated Si screen was used to generate optical transition radiation (OTR) resulting from the beam’s interaction with the screen. The chicane bypass beamline allowed the measurements of the bunch length without the compression stage at the downstream beamline location using OTR and the streak camera. We have observed electron beam bunch lengths from 5 to 16 ps (sigma) for micropulse charges of 60 pC to 800 pC, respectively. We also report a compressed sub-ps micropulse case.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1408321
Report Number(s):
FERMILAB-CONF-16-718-AD
1634781
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 2nd North American Particle Accelerator Conference, Chicago, Illinois, USA, 10/09-10/14/2016
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Lumpkin, A. H., Thurman-Keup, R., Edstrom Jr., D., Ruan, J., and Santucci, J. Initial Observations of Micropulse Elongation of Electron Beams in a SCRF Accelerator. United States: N. p., 2016. Web.
Lumpkin, A. H., Thurman-Keup, R., Edstrom Jr., D., Ruan, J., & Santucci, J. Initial Observations of Micropulse Elongation of Electron Beams in a SCRF Accelerator. United States.
Lumpkin, A. H., Thurman-Keup, R., Edstrom Jr., D., Ruan, J., and Santucci, J. 2016. "Initial Observations of Micropulse Elongation of Electron Beams in a SCRF Accelerator". United States. https://www.osti.gov/servlets/purl/1408321.
@article{osti_1408321,
title = {Initial Observations of Micropulse Elongation of Electron Beams in a SCRF Accelerator},
author = {Lumpkin, A. H. and Thurman-Keup, R. and Edstrom Jr., D. and Ruan, J. and Santucci, J.},
abstractNote = {Commissioning at the SCRF accelerator at the Fermilab Accelerator Science and Technology (FAST) Facility has included the implementation of a versatile bunch-length monitor located after the 4-dipole chicane bunch compressor for electron beam energies of 20-50 MeV and integrated charges in excess of 10 nC. The team has initially used a Hamamatsu C5680 synchroscan streak camera to assess the effects of space charge on the electron beam bunch lengths. An Al-coated Si screen was used to generate optical transition radiation (OTR) resulting from the beam’s interaction with the screen. The chicane bypass beamline allowed the measurements of the bunch length without the compression stage at the downstream beamline location using OTR and the streak camera. We have observed electron beam bunch lengths from 5 to 16 ps (sigma) for micropulse charges of 60 pC to 800 pC, respectively. We also report a compressed sub-ps micropulse case.},
doi = {},
url = {https://www.osti.gov/biblio/1408321}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Oct 09 00:00:00 EDT 2016},
month = {Sun Oct 09 00:00:00 EDT 2016}
}

Conference:
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