12-13 February 2014
Europe/Berlin timezone

ILC Polarized Positron Source at Center-of-Mass Energies of 250 GeV and 1 TeV

13 Feb 2014, 09:30


Institut für Kernphysik; Johannes Gutenberg-Universität Mainz; Johann-Joachim-Becher-Weg 45; D 55128 Mainz


Andriy Ushakov (University of Hamburg)


The base-line positron source of the future International Linear Collider (ILC) is polarized and designed for an operation with electron drive beam energies between 150 GeV and 250 GeV (corresponding to 300 GeV up to 500 GeV CM energies). However, running at CM energies below 300 GeV reduces the positron yield substantially; running at Ecm = 1 TeV implies a low degree of positron polarization. The simulation results of yield and polarization at the positron source will be presented for these two "extreme" energies. The possible modifications of the helical undulator will be discussed.

Primary author

Andriy Ushakov (University of Hamburg)


Friedrich STAUFENBIEL (DESY) Prof. Gudrid MOORTGAT-PICK (University of Hamburg) Sabine Riemann (DESY)

Presentation Materials