Bonn 2010 – scientific programme

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T: Fachverband Teilchenphysik

T 110: Niederenergie-Neutrinophysik und Suche nach dunkler Materie IV

T 110.7: Talk

Friday, March 19, 2010, 15:35–15:50, HG XI

The Calibration System for the GERDA Experiment — •Francis Froborg — Universität Zürich, Schweiz

The GERDA experiment uses the neutrinoless double beta decay to probe three fundamental questions in neutrino physics - Are they Dirac or Majorana particles? What is their absolute mass? What is the mass hierarchy of the three generations?

In my talk I will present the calibration system for the Ge semiconductor diodes enriched in Ge-76. The system is used to set the energy scale and calibrate the pulse shapes which will be used to further reject background events. The lowest possible background is crucial for the whole experiment and therefore the calibration system must not interfere with the data acquisition phase while at the same time operate efficiently during the calibration runs.