Darmstadt 2016 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 22: Instrumentation VI
HK 22.2: Talk
Tuesday, March 15, 2016, 14:30–14:45, S1/01 A3
Calibration and Monitoring System for the CALIFA Calorimeter — •Patrick Remmels, Roman Gernhäuser, Benjamin Heiss, Philipp Klenze, and Max Winkel for the R3B collaboration — Physik Department, Technische Universität München
One of the major components of the R3B-experiment at the upcoming Facility for Antiproton and Ion Research (FAIR) in Darmstadt is the 4π-calorimeter CALIFA. The stability of all 2560 detector channels depends on the experimental conditions and its monitoring is essential for a high resolution spectroscopy. A newly developed digital pulse generator emulates the complex signal created in the CsI(Tl) crystals in order to calibrate the online pulse shape analysis for particle identification, background suppression and energy measurements. Further applications include deadtime studies and pileup discrimination in the general readout. The full implementation of 160 channels of pulse generation on the digital readout platform FEBEX allows an in spill separation of physical and calibration events in the continuous data stream. Setup, performance and first applications will be presented in this talk. Supported by BMBF (05P12 WOFNF, 05P15 WOFNA) and GSI (TMLFRG1316).