ANALYSIS OF SIMULATED AND MEASURED PULSE SHAPES OF CLOSED-ENDED HPGE DETECTORS

Authors
KROLL T PETER I ELZE TW GERL J HAPP T KASPAR M SCHAFFNER H SCHREMMER S SCHUBERT R VETTER K WOLLERSHEIM HJ
Citation
T. Kroll et al., ANALYSIS OF SIMULATED AND MEASURED PULSE SHAPES OF CLOSED-ENDED HPGE DETECTORS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 371(3), 1996, pp. 489-496
Citations number
24
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
371
Issue
3
Year of publication
1996
Pages
489 - 496
Database
ISI
SICI code
0168-9002(1996)371:3<489:AOSAMP>2.0.ZU;2-B
Abstract
A program for simulating pulse shapes of HPGe detectors has been devel oped taking into account the closed-ended geometry as well as multiple interactions of gamma-rays. Good agreement between simulated and expe rimentally determined pulse shapes is achieved. From a detailed invest igation of risetime distributions a method to determine the radial coo rdinate of the first point of interaction has been substantiated. For a large Ge detector with 70 mm diameter a radial resolution of 4 to 8 mm has been obtained. This method, combined with segmentation of the d etector, reduces the Doppler broadening of gamma-lines significantly.