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Title: Single-shot wakefield measurement system

Journal Article · · Physical Review Accelerators and Beams
; ; ; ; ; ;

A new experimental technique for the accurate measurements of wakefields is presented. Knowledge of wakefields is required for many applications ranging from the suppression of wakefields that arise from geometrical discontinuities to the enhancement of wakefields in structure and plasma based wakefield accelerators. In the past, direct measurements of wakefields were done with the drive-witness technique wherein the delay of a short witness beam trailing collinearly behind a high-charge drive beam is scanned over multiple shots and the wakefield is inferred from the energy spectrum of the witness beam. That technique is limited by shot-to-shot jitter, overlap of the drive and witness energy spectrum and the loss of all time-domain information. In this paper, we describe a new technique that overcomes these limitations by measuring the longitudinal phase space of a long witness beam and the drive beam in a single shot. We conclude by presenting experimental results to demonstrate its feasibility using a dielectric structure wakefield accelerator.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1457205
Alternate ID(s):
OSTI ID: 1488568
Journal Information:
Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Vol. 21 Journal Issue: 6; ISSN 2469-9888
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Figures / Tables (18)

FIG. 1.(p. 2)figure FIG. 1.
FIG. 2.(p. 3)figure FIG. 2.
FIG. 3.(p. 5)figure FIG. 3.
FIG. 4.(p. 6)figure FIG. 4.
TABLE I.(p. 6)table TABLE I.
FIG. 5.(p. 7)figure FIG. 5.
FIG. 6.(p. 7)figure FIG. 6.
FIG. 7.(p. 7)figure FIG. 7.
TABLE II.(p. 7)table TABLE II.
FIG. 10.(p. 8)figure FIG. 10.
FIG. 11.(p. 8)figure FIG. 11.
FIG. 8.(p. 8)figure FIG. 8.
FIG. 9.(p. 8)figure FIG. 9.
FIG. 12.(p. 9)figure FIG. 12.
Table III.(p. 11)table Table III.
Table IV.(p. 11)table Table IV.
TABLE V.(p. 12)table TABLE V.
Table VI.(p. 12)table Table VI.

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43 PARTICLE ACCELERATORS