https://doi.org/10.1140/epjc/s10052-008-0555-0
Regular Article - Experimental Physics
Test of pulse shape analysis using single Compton scattering events
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, München, Germany
* e-mail: xliu@mppmu.mpg.de
Received:
10
October
2007
Revised:
29
January
2008
Accepted:
29
January
2008
Published online:
27
February
2008
Procedures developed to separate single- and multiple-site events in germanium detector are tested with specially selected event samples provided by an 18-fold segmented prototype germanium detector for phase II of the germanium detector array, GERDA. The single Compton scattering, i.e. single-site, events are tagged by coincidently detecting the scattered photon with a second detector positioned at a defined angle. A neural network is trained to separate such events from events which come from multi-site dominated samples. Identification efficiencies of ≈80% are achieved for both single- and multi-site events.
© Springer-Verlag , 2008
