Frankfurt 2014 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 27: Instrumentierung

HK 27.6: Talk

Tuesday, March 18, 2014, 18:00–18:15, HZ 8

The Temperature and Humidity Monitoring System for PANDA — •Miriam Kümmel for the PANDA collaboration — Institut für Experimentalphysik I, Ruhr-Universität Bochum

The electromagnetic calorimeter (EMC) of the PANDA detector to be constructed at FAIR consists of lead tungstate (PWO) crytals, which have a temperature dependent light yield. To achieve the design energy resolution, the EMC must be operated at -25^∘C, where temperature fluctuations of at most 0.1^∘C are acceptable. This results in high demands on the precision and resolution of the temperature monitoring. Ultra-thin platinum resistance temperature detectors (RTDs) are needed to measure the temperature in the densely packed EMC. The RTDs are read out by the temperature and humidity monitoring system for PANDA (THMP). Both have been developed at Ruhr-Universität Bochum. Not only the RTDs, but also the readout electronics has to be calibrated individually to suffice the high demands. Both, the calibration procedure and improvements in the electronic read out system will be presented.

This work is supported by the BMBF with support code 05P12PCFP5 and by FZ Jülich.