Speaker
Andreas Schaelicke
(DESY, Zeuthen)
Description
For the design of the ILC a polarised positron source based on a helical undulator
system has been proposed. In order to optimise the positron beam, i.e. to ensure
high intensity as well as high degree of polarisation, a measurement of the
polarisation close to the positron creation point is envisaged.
In this contribution methods to determine the positron polarisation at low energies
are discussed. For a more detailed analysis simulations with an extended version of
Geant4, which allows the tracking of polarised particles taking into account the
spin effects, are currently performed. A status will be presented.
Authors
Andreas Schaelicke
(DESY, Zeuthen)
Sabine Riemann
(DESY, Zeuthen)
Co-authors
Karim Laihem
(DESY, Zeuthen)
Ralph Dollan
(Humboldt University Berlin)
Thomas Lohse
(Humboldt University Berlin)
