Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 45: Postersession
HK 45.51: Poster
Mittwoch, 16. März 2016, 18:30–20:30, S1/05 22-24
Test of Radiation Hardness of pcCVD Detectors — •Steffen Schlemme1,2, Joachim Enders2, P. Figuera3, J. Frühauf1, Mladen Kis1, A. Kratz1, N. Kurz1, S. Löchner1, A. Musumarra3,4, Chiara Nociforo1, S. Salamone3, Fabio Schirru1, B. Szczepanczyk1, M. Träger1, and R. Visinka1 — 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 2Technische Universität Darmstadt, Germany — 3LNS-INFN Catania, Italy — 4University of Catania, Italy
The new in-flight separator Super-FRS is under construction at the Facility for Antiproton and Ion Research (FAIR, Darmstadt). Ion rates up to 3×1011 238U/spill demand an adaption of detectors to a high radiation enviroment. A test experiment to investigate the radiation hardness of polycrystalline diamond detectors (pcCVD) was performed at the LNS-INFN in Catania using a 12C beam at 62 MeV/u and intensities of up to 1.5 pnA. The setup consisted of pcCVD strip detectors to measure the beam profile, a single crytal diamond detector to calibrate the ionisation chamber working in current mode as a beam intensity monitor and a pcCVD sample to be irradiated. The IC used was designed for FAIR and showed a stable counting rate allowing us to calibrate and perform beam intensity measurements with it. The total measured counts on the sample were 8.25×1011 counts/mm2 over a period of 60 hours. Digital waveforms of the pcCVD signals were taken with an oscilloscope and analysed. The results showed no change of the pcCVD signal proprerties during the entire irradiation.