Gießen 2007 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 8: Instrumentation und Anwendungen

HK 8.3: Vortrag

Montag, 12. März 2007, 18:30–18:45, B

Tracking and background suppression in the planned gamma array of DESPEC — •Stanislav Tashenov and Jürgen Gerl — Gesellschaft für Schwerionenforschung mbH, Planckstr. 1, 64291 Darmstadt, Germany

For decay spectroscopy experiments with implanted radioactive beams within the NUSTAR/DESPEC project a high resolution Ge gamma tracking array is being designed. A new dedicated gamma ray tracking algorithm is being developed, featuring reconstruction of the events with incomplete energy deposition. Exploiting the tracking capability of the array, a background suppression method has been developed based on the separation of events originating from the target and from localized background sources. Monte-Carlo simulations show that a background suppression factor of 10 up to 100 can be achieved. The dependance of the tracking and suppression efficiency on the detector properties will be discussed.