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Experimental Verification of Predicted Oscillations near a Spin Resonance

Conference · · AIP Conf.Proc.1149:841-846,2009
OSTI ID:1030939
The E166 experiment at the Stanford Linear Accelerator Center (SLAC) has demonstrated a scheme for the production of polarized positrons which is suitable for implementation in a future Linear Collider. A multi-GeV electron beam passed through a helical undulator to generate multi-MeV, circularly polarized photons which were then converted in a thin target to produce positrons (and electrons) with longitudinal polarization above 80% at 6 MeV. The results are in agreement with GEANT4 simulations that include the dominant polarization-dependent interactions of electrons, positrons and photons in matter.
Research Organization:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1030939
Report Number(s):
SLAC-REPRINT-2011-120
Conference Information:
Journal Name: AIP Conf.Proc.1149:841-846,2009
Country of Publication:
United States
Language:
English

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