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Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 4: Instrumentation and Applications I

HK 4.2: Vortrag

Montag, 8. März 2004, 16:15–16:30, C

The AGATA γ-ray tracking detector module — •Dirk Weißhaar — Institute for Nuclear Physics, University of Köln

The Advanced GAmma Tracking Array AGATA will be the first complete 4π γ-ray spectrometer built entirely from Germanium detectors. Besides the good energy resolution, the AGATA Germanium detectors are capable of resolving the position of each γ-interaction within a few millimeters. This allows to track the scattering path of a γ-ray (Compton, pair production and terminating photo effect) in order to decide whether it was completly absorbed.

The development of the AGATA detectors is based on the technology of the MINIBALL detectors [1, 2]. In AGATA three encapsulated, hexaconcical Germanium crystals are closely packed in a common cryostat. Each crystal is 36-fold segmented on the outer contact. The current status of this detector development will be reported.

[1] D. Weißhaar, DPG-Verhandlungen 2001, HK26.2; 2002, HK7.6 und 2003, HK31.5

[2] J. Eberth et al., Prog. Part. Nucl. Phys. 46, 389 (2001) gefördert durch das BMBF unter 06K167

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