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Title: A proposal for antiparallel acceleration of positrons using CEBAF

Abstract

Here, we present a scheme for positron beam acceleration in CEBAF antiparallel to the normal electron path, requiring no change in polarity of the magnet systems. This feature is essential to the principal benefit: enabling extremely simple configuration changes between conventional (clockwise) e - acceleration and counter clockwise e + acceleration. Additionally, it appears possible to configure the accelerating cavity phases to support concurrent acceleration of the electron and positron beams. The last mode also may enable use of the higher peak current electron beam for system diagnostics. The inherent penalty of the concurrent mode in acceleration efficiency and increased energy spread may render this a commissioning-only diagnostic option, but the possibility appears worthy of consideration.

Authors:
 [1];  [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1440319
Report Number(s):
JLAB-ACP-17-2643; DOE/OR/23177-4369
Journal ID: 0094-243X
Grant/Contract Number:
AC05-06OR23177
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1970; Journal Issue: 1
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 43 PARTICLE ACCELERATORS; Leptons; International science organizations; Electron positron interactions; Particle beams

Citation Formats

Tiefenback, M., and Wojtsekhowski, B. A proposal for antiparallel acceleration of positrons using CEBAF. United States: N. p., 2018. Web. doi:10.1063/1.5040221.
Tiefenback, M., & Wojtsekhowski, B. A proposal for antiparallel acceleration of positrons using CEBAF. United States. doi:10.1063/1.5040221.
Tiefenback, M., and Wojtsekhowski, B. Tue . "A proposal for antiparallel acceleration of positrons using CEBAF". United States. doi:10.1063/1.5040221.
@article{osti_1440319,
title = {A proposal for antiparallel acceleration of positrons using CEBAF},
author = {Tiefenback, M. and Wojtsekhowski, B.},
abstractNote = {Here, we present a scheme for positron beam acceleration in CEBAF antiparallel to the normal electron path, requiring no change in polarity of the magnet systems. This feature is essential to the principal benefit: enabling extremely simple configuration changes between conventional (clockwise) e- acceleration and counter clockwise e+ acceleration. Additionally, it appears possible to configure the accelerating cavity phases to support concurrent acceleration of the electron and positron beams. The last mode also may enable use of the higher peak current electron beam for system diagnostics. The inherent penalty of the concurrent mode in acceleration efficiency and increased energy spread may render this a commissioning-only diagnostic option, but the possibility appears worthy of consideration.},
doi = {10.1063/1.5040221},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1970,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2018},
month = {Tue May 01 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on May 1, 2019
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