skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Evaluation of Temporal Diagnostic Techniques for Two-Bunch Facet Beam

Abstract

Three temporal diagnostic techniques are considered for use in the FACET facility at SLAC, which will incorporate a unique two-bunch beam for plasma wakefield acceleration experiments. The results of these experiments will depend strongly on the the inter-bunch spacing as well as the longitudinal profiles of the two bunches. A reliable, singleshot, high resolution measurement of the beam's temporal profile is necessary to fully quantify the physical mechanisms underlying the beam driven plasma wakefield acceleration. In this study we show that a transverse deflecting cavity is the diagnostic which best meets our criteria. Based on our laboratory testing, numerical calculations, and simulations of the three single-shot temporal diagnostic devices, the X-band TCAV system is the best candidate for resolving FACET's two-bunch beam, with an estimated resolution of 7 {micro}m. Both the S-band TCAV system and the EO system could resolve the peak-to-peak separation of the two bunches in the FACET beam with estimated resolutions of 25 {micro}m and 30 {micro}m, respectively, but would be unable to resolve the temporal profiles of the individual bunches themselves. Because the TCAV signal is more easily interpreted and because the reliability of the EO system is less well known, however, the S-band TCAV systemmore » would be the next preferred option after the X-band TCAV system. The Fesca-200 streak camera, though simple, compact, and reliable, is unable to achieve a resolution that would be of use to FACET.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1022471
Report Number(s):
SLAC-PUB-14419
TRN: US1104233
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: Presented at 2011 Particle Accelerator Conference (PAC'11), New York, NY, 28 Mar - 1 Apr 2011
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATION; ACCELERATORS; DIAGNOSTIC TECHNIQUES; EVALUATION; PLASMA; RELIABILITY; RESOLUTION; STANFORD LINEAR ACCELERATOR CENTER; STREAK CAMERAS; TESTING; Accelerators,ACCPHY

Citation Formats

Litos, M D, Bionta, M R, Dolgashev, V A, England, R J, Fritz, D, Gilevich, S, Hering, Ph, Hogan, M J, and /SLAC. Evaluation of Temporal Diagnostic Techniques for Two-Bunch Facet Beam. United States: N. p., 2011. Web.
Litos, M D, Bionta, M R, Dolgashev, V A, England, R J, Fritz, D, Gilevich, S, Hering, Ph, Hogan, M J, & /SLAC. Evaluation of Temporal Diagnostic Techniques for Two-Bunch Facet Beam. United States.
Litos, M D, Bionta, M R, Dolgashev, V A, England, R J, Fritz, D, Gilevich, S, Hering, Ph, Hogan, M J, and /SLAC. Fri . "Evaluation of Temporal Diagnostic Techniques for Two-Bunch Facet Beam". United States. https://www.osti.gov/servlets/purl/1022471.
@article{osti_1022471,
title = {Evaluation of Temporal Diagnostic Techniques for Two-Bunch Facet Beam},
author = {Litos, M D and Bionta, M R and Dolgashev, V A and England, R J and Fritz, D and Gilevich, S and Hering, Ph and Hogan, M J and /SLAC},
abstractNote = {Three temporal diagnostic techniques are considered for use in the FACET facility at SLAC, which will incorporate a unique two-bunch beam for plasma wakefield acceleration experiments. The results of these experiments will depend strongly on the the inter-bunch spacing as well as the longitudinal profiles of the two bunches. A reliable, singleshot, high resolution measurement of the beam's temporal profile is necessary to fully quantify the physical mechanisms underlying the beam driven plasma wakefield acceleration. In this study we show that a transverse deflecting cavity is the diagnostic which best meets our criteria. Based on our laboratory testing, numerical calculations, and simulations of the three single-shot temporal diagnostic devices, the X-band TCAV system is the best candidate for resolving FACET's two-bunch beam, with an estimated resolution of 7 {micro}m. Both the S-band TCAV system and the EO system could resolve the peak-to-peak separation of the two bunches in the FACET beam with estimated resolutions of 25 {micro}m and 30 {micro}m, respectively, but would be unable to resolve the temporal profiles of the individual bunches themselves. Because the TCAV signal is more easily interpreted and because the reliability of the EO system is less well known, however, the S-band TCAV system would be the next preferred option after the X-band TCAV system. The Fesca-200 streak camera, though simple, compact, and reliable, is unable to achieve a resolution that would be of use to FACET.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: