Prof. Dr. rer. nat. Bastian Märkisch
Courses and Dates
Offered Bachelor’s or Master’s Theses Topics
- Design of a Scintillation Detector with Drift Monitoring via a Pulser System
- The Proton and Electron Radiation Channel (PERC) facility, currently being set up at the FRM II, aims to measure the beta-asymmetry in neutron decay an order of magnitude more precisely to determine parameters of the Standard Model and to search for new physics beyond it. A system of superconducting coils guides the decay products towards the detector systems. PERC has one primary, downstream detector system and a secondary system located upstream, that will identify events with backscattered electrons from the primary detector. At first, the primary detector will be based on a fast plastic scintillator and photomultiplier tubes, similar to the detectors of previous experiments. Calibrating the detectors is a key factor in achieving the precision aimed at. Radioactive sources with mono-energetic electrons serve for the calibration. A pulser system continuously monitors the detector’s drift with short, controlled light pulses. The pulser system, which includes a Kapustinsky pulser, a silicon photomultiplier and temperature sensors, is being controlled via an Arduino. Within this project, the student will design and assemble the first primary detector for PERC and commission it including the pulser system. The performance of the detector will studied, including simulations based on Geant4.
- suitable as
- Master’s Thesis Applied and Engineering Physics
- Supervisor: Bastian Märkisch