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Publication Information
Title Two Wien Filter Spin Flipper
Abstract A new 4pi spin ma­nip­u­la­tor com­posed of two Wien fil­ters ori­ent­ed or­thog­o­nal­ly and sep­a­rat­ed by two solenoids has been in­stalled at the CEBAF/Jef­fer­son Lab pho­toin­jec­tor. The new spin ma­nip­u­la­tor is used to pre­cise­ly set the elec­tron spin di­rec­tion at an ex­per­i­ment in any di­rec­tion (in or out of plane of the ac­cel­er­a­tor) and pro­vides the means to re­verse, or flip, the he­lic­i­ty of the elec­tron beam on a daily basis. This re­ver­sal is being em­ployed to sup­press sys­tem­at­ic false asym­me­tries that can jeop­ar­dize chal­leng­ing par­i­ty vi­o­la­tion ex­per­i­ments that strive to mea­sure in­creas­ing­ly small physics asym­me­tries [*,**,***]. The spin ma­nip­u­la­tor is part of the ul­tra-high vac­u­um po­lar­ized elec­tron source beam line and has been suc­cess­ful­ly op­er­at­ed with 100keV and 130keV elec­tron beam at high cur­rent (>100 mi­croAmps). A unique fea­ture of the de­vice is that spin-flip­ping re­quires only the po­lar­i­ty
Author(s) Joe Grames, Philip Adderley, Jay Benesch, Jim Clark, John Hansknecht, Reza Kazimi, Danny Machie, Matthew Poelker, Marcy Stutzman, Riad Suleiman, Yuhong Zhang
Publication Date March 2011
Document Type Meeting, Proceedings
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Accelerator Ops, R&D / Ctr For Injectors&Sources / Ctr for Injectors&Sources
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-11-1377 OSTI Number: 1020745
LANL Number: Other Number: DOE/OR/23177-1608
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name PAC 2011
Meeting Date 3/28/2011
Document Subtype Poster
Proceedings
Title Proceedings of PAC 2011
Editor(s)
Publisher Jacow
Refereed No
Page Number 862-864
Year 2011
Attachments/Datasets/DOI Link
Document(s)
JLAB-ACC-11-1377.pdf (STI Document)
DOI Link
Dataset(s) (none)
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