Construction and Test of a quarz-based Polarimeter Detector Prototype
The measurement of the beam polarisation at the ILC needs to be improved
significantly compared to previous polarimeters at other accelerators.
Simulations have shown that it should be possible to construct a
"self-calibrating" detector by employing quarz (instead of the usual
gas) as a Cherenkov medium - due to its much higher light yield.
This concept has to be established by building and testing prototype
detector.
(Construction & basic functionality tests: Master/Diploma thesis;
in addition testbeam operation, data analysis and comparison with
simulation: PhD thesis).
Supervisor: Jenny List
Improvement of the Polarimeter Data Analysis
Compton polarimetry relies on the measurement of the spacial
distribution of about 1000 Compton scattered electrons per
particle bunch in a Cherenkov detector. Existing test beam measurements
showed that the position resolution can be improved significantly
by a segmented read-out of the detector channels. The impact of such
an improvement on the actual polarisation determination needs to be
evaluated means of simulations and test beam data.
(Master thesis or part of an PhD thesis)
Supervisor: Jenny List
