Request for a DESY Summer Student in 2012 --------------------------------------------------------------- Name : Annika Vauth email : Annika.Vauth@desyde Tel : Room : DESY-Group/Experiment : FLC (Ties Behnke) ---------------------------------------------------------------- Short description of the project the student should work on : At the International Linear Collider (ILC) it is planned to use spin polarized electron and positron beams to study physics processes. The DESY FLC group developes a Compton polarimeter to measure the polarization of the beams very precisely. It turned out that the non-linear behaviour of photo multipliers is the main contribution to the uncertainty of this polarimeter, which is required to be less than 0.25%. For this reason an accurate calibration of the photo multipliers is essential. In this context two different concepts are pursued: a dedicated LED calibration system for a gas-filled Cherenkov detector and additionally a "self-calibrating" quartz Cherenkov detector. The prospective student will have the opportunity to contribute in both hardware development as well as data analysis. ------------------------------------------------------------------ Physics / Computing/ Engineering Content of the project : 60 % / 30% / 10% ------------------------------------------------------------------ Special Qualifications expected from the student ( Computing,...) : The work in the laboratory will make up an important share of the project, therefore some practical experience in this area is expected. Experience with C++ / data analysis is helpful but not essential. ------------------------------------------------------------------ Other remarks : ------------------------------------------------------------------- Supervisor(s) during the project (17/07/12 - 6/09/12) : Name: Tel: email : Annika Vauth 5343 Annika.Vauth@desy.de Benedikt Vormwald 4644 Benedikt.Vormwald@desy.de