Single-shot wakefield measurement system
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 wakef...
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American Physical Society
2018-06-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.21.062801 |
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doaj-2b6ce4cab386453eb12223f6a39818592020-11-24T23:03:36ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882018-06-0121606280110.1103/PhysRevAccelBeams.21.062801Single-shot wakefield measurement systemQiang GaoJiaru ShiHuaibi ChenGwanghui HaJohn G. PowerManoel CondeWei GaiA 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.http://doi.org/10.1103/PhysRevAccelBeams.21.062801 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Qiang Gao Jiaru Shi Huaibi Chen Gwanghui Ha John G. Power Manoel Conde Wei Gai |
spellingShingle |
Qiang Gao Jiaru Shi Huaibi Chen Gwanghui Ha John G. Power Manoel Conde Wei Gai Single-shot wakefield measurement system Physical Review Accelerators and Beams |
author_facet |
Qiang Gao Jiaru Shi Huaibi Chen Gwanghui Ha John G. Power Manoel Conde Wei Gai |
author_sort |
Qiang Gao |
title |
Single-shot wakefield measurement system |
title_short |
Single-shot wakefield measurement system |
title_full |
Single-shot wakefield measurement system |
title_fullStr |
Single-shot wakefield measurement system |
title_full_unstemmed |
Single-shot wakefield measurement system |
title_sort |
single-shot wakefield measurement system |
publisher |
American Physical Society |
series |
Physical Review Accelerators and Beams |
issn |
2469-9888 |
publishDate |
2018-06-01 |
description |
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. |
url |
http://doi.org/10.1103/PhysRevAccelBeams.21.062801 |
work_keys_str_mv |
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