[SLAC]
[SLAC Pubs and Reports]
SLAC-PUB-11827
Beam Dynamics in a Spectrometer for the Polarized Positron Production Experiment
Abstract
The proposed experiment E-166 at SLAC is designed to demonstrate the
possibility of producing longitudinally polarized positrons from circularly
polarized photons to be used in future Linear Collider. The experimental set-up
utilizes a low emittance 50 GeV electron beam passing through a helical
undulator in the Final Focus Test Beam line of the SLAC accelerator. Circularly
polarized photons generated by the electron beam in the undulator hit a target
and produce electron-positron pairs. The purpose of the post-target
spectrometer is to select the positron beam and to deliver it to a polarimeter
whilst keeping the positron beam polarization as high as possible. This paper
analyzes positron transmission and polarization in the E-166 spectrometer
experiment. The positron transmission has a maximum value of 7% for a positron
beam energy of 5.5 MeV, while positron polarization is approximately 60%.
Full Text
PDF
Compressed PostScript
Not available for this document.
More Information
Full bibliographic data for this document, including its complete author list,
is (or soon will be) available from SLAC's
SPIRES-HEP
Database.
Please report problems with this file to
posting@slac.stanford.edu.
The SLAC preprint inventory is provided by the
SLAC Technical Publications Department.
Page generated 19 Apr 2006 @ 08:42 PDT by htmlme.pl