Speaker
Dr
Andriy Ushakov
(Deutsches Elektronen-Synchrotron (DESY))
Description
The Lithium Lens (LL) is one of the possible candidates for positron
collection optic elements of an ILC positron source. The collection
efficiency of positrons after the conversion target is a key issue of
the source design. The LL has been simulated using Geant4-based
application (PPS-Sim) that allows to simulate the production of
polarized positrons and their tracking in electromagnetic fields. In
order to get highest positron yield and polarization, the optimal lens
parameters are determined for the base-line ILC positron source. The
efficiency of LL is compared with others schemes of positron capture as
Adiabatic Matching Device and Quarter Wave Transformer.
Author
Dr
Andriy Ushakov
(Deutsches Elektronen-Synchrotron (DESY))
