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SLAC's polarized electron source laser system for the E-158 parity violation experiment

Brachmann, A. and Alley, R. and Browne, M. J. and Cates, G. D. and Clendenin, J. and deLamare, J. and Frisch, J. and Galetto, T. and Hughes, E. W. and Humensky, T. B. and Kumar, K. S. and Mastromarino, P. and Sodja, J. and Turner, J. and Witte, K. and Woods, M. (2002) SLAC's polarized electron source laser system for the E-158 parity violation experiment. In: Laser and Beam Control Technologies. Proceedings of SPIE. No.4632. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 211-222. ISBN 9780819443717. http://resolver.caltech.edu/CaltechAUTHORS:20190221-110518224

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Abstract

SLAC E158 is an experiment to make the first measurement of parity violation in Moller scattering. The left-right cross-section asymmetry in the elastic scattering of a 45-GeV polarized electron beam off unpolarized electrons in a liquid hydrogen target will be measured to an accuracy of better than 10-8, with the expected Standard Model asymmetry being approximately 10-7. An intense circularly polarized laser beam for the polarized electron source is required with the ability to quickly switch between left and right polarization states with minimal left-right asymmetries in the parameters of the electron beam. This laser beam is produced by a unique SLAC-designed, flash-lamp pumped, Ti:Sapphire laser. We present this laser system design and initial results from recent commissioning runs.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.469769DOIArticle
ORCID:
AuthorORCID
Turner, J.0000-0003-4625-2951
Additional Information:© 2002 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Parity violation, polarized electrons, Ti:sapphire laser
Record Number:CaltechAUTHORS:20190221-110518224
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190221-110518224
Official Citation:Axel Brachmann, Ray K. Alley, M. J. Browne, G. D. Cates, James Clendenin, J. deLamare, Josef C. Frisch, T. Galetto, E. W. Hughes, Thomas Brian Humensky, K. S. Kumar, Peter A. Mastromarino, J. Sodja, James L. Turner, Klaus H. Witte, and Michael B. Woods "SLAC's polarized electron source laser system for the E-158 parity violation experiment", Proc. SPIE 4632, Laser and Beam Control Technologies, (4 June 2002); doi: 10.1117/12.469769; https://doi.org/10.1117/12.469769
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93058
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:04 Mar 2019 15:54
Last Modified:04 Mar 2019 15:54

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