A proposal for antiparallel acceleration of positrons using CEBAF

Tiefenback, M.; Wojtsekhowski, B.

doi:10.1063/1.5040221

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:

Tiefenback, M. ^[1]; Wojtsekhowski, B. ^[1]

Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Publication Date:: Tue May 01 00:00:00 EDT 2018

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1440319

Report Number(s):: JLAB-ACP-17-2643; DOE/OR/23177-4369
Journal ID: ISSN 0094-243X; TRN: US1900815

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Accepted Manuscript

Journal Name:: AIP Conference Proceedings

Additional Journal Information:: Journal Volume: 1970; Journal Issue: 1; Journal ID: ISSN 0094-243X

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.

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                    Tiefenback, M., & Wojtsekhowski, B. A proposal for antiparallel acceleration of positrons using CEBAF.  United States.  https://doi.org/10.1063/1.5040221

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                    Tiefenback, M., and Wojtsekhowski, B. Tue .  
"A proposal for antiparallel acceleration of positrons using CEBAF".  United States.  https://doi.org/10.1063/1.5040221.  https://www.osti.gov/servlets/purl/1440319.

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@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}

}

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Works referenced in this record:

High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility
journal, June 2014

Golge, S.; Vlahovic, B.; Wojtsekhowski, B.
Journal of Applied Physics, Vol. 115, Issue 23
DOI: 10.1063/1.4884781

ER@CEBAF - A High Energy, Multi-pass Energy Recovery Experiment at CEBAF
text, January 2016

Méot, Francois; Ben-Zvi, Ilan; Bevins, Michael
JACoW, Geneva, Switzerland
DOI: 10.18429/JACoW-IPAC2016-TUOBA02

On measurement of the isotropy of the speed of light
text, January 2014

Wojtsekhowski, B.
arXiv
DOI: 10.48550/arxiv.1409.6373

High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility
text, January 2014

Golge, S.; Vlahovic, B.; Wojtsekhowski, B.
arXiv
DOI: 10.48550/arxiv.1404.1534

On measurement of the isotropy of the speed of light
journal, October 2014

Wojtsekhowski, B.
EPL (Europhysics Letters), Vol. 108, Issue 3
DOI: 10.1209/0295-5075/108/31001

Brief summary on past workshops for a positron beam at JLab
conference, January 2009

Guèye, Paul; Elouadrhiri, Latifa; Grames, Jospeh
INTERNATIONAL WORKSHOP ON POSITRONS AT JEFFERSON LAB, AIP Conference Proceedings
DOI: 10.1063/1.3232026

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Title: A proposal for antiparallel acceleration of positrons using CEBAF

Abstract

Citation Formats

High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility journal, June 2014

ER@CEBAF - A High Energy, Multi-pass Energy Recovery Experiment at CEBAF text, January 2016

On measurement of the isotropy of the speed of light text, January 2014

High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility text, January 2014

On measurement of the isotropy of the speed of light journal, October 2014

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High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility
journal, June 2014

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text, January 2016

On measurement of the isotropy of the speed of light
text, January 2014

High-intensity positron microprobe at the Thomas Jefferson National Accelerator Facility
text, January 2014

On measurement of the isotropy of the speed of light
journal, October 2014

Brief summary on past workshops for a positron beam at JLab
conference, January 2009