EUCARD workshop "Spin optimization at Lepton accelerators"

Session

Spin-Optimization: Realization

Feb 13, 2014, 1:30 PM

Mainz

Conveners

Spin-Optimization: Realization

• Jenny List

6. A Quartz Cherenkov Detector for Polarimetry at the ILC

Annika Vauth (DESY)

2/13/14, 1:30 PM

The physics program of the International Linear Collider requires precise knowledge of the luminosity weighted average polarisation at the electron-positron collision point. One crucial element of the ILC polarimetry concept is the use of Compton-Polarimeters measuring before and behind the collision point. It is foreseen to use Cherenkov detectors to measure the Compton scattered electrons...

10. Heat load and stress studies of the collimator materials for the polarized ILC positron source

Dr Friedrich Staufenbiel (DESY Zeuthen)

2/13/14, 2:00 PM

An intense polarized positron beam for future linear colliders can be produced using a high power beam of circularly polarized photons which penetrates a thin titanium-alloy target. The degree of polarization can be increased by cutting the outer part of the photon beam generated in a helical undulator using a collimator in front of the target. However, the photon beam induces substantial heat...

5. Status of the Double Scattering Polarimeter for MESA

Matthias Molitor (Johannes Gutenberg Universität Mainz)

2/13/14, 2:30 PM

Talk - 30 min

The new Mainzer Energy recovering Superconduting Accelerator (MESA) will be used for high precision measurement of the Weinberg angle at low Q². In order to be able to measure as precise as desired, the polarisation of the incident electron beam has be know with very low uncertainty. Therefore a Double Scattering Polarimeter (DSP) will be installed at MESA at low energies. In my talk I will...