Title :
Measurement requirements and front-end design rules for gamma-ray tracking in large-volume germanium detectors through pulse-shape analysis
Author :
Ripamonti, G. ; Pullia, A. ; Geraci, A.
Author_Institution :
Dipt. di Elettronica, Politecnico di Milano, Italy
Abstract :
In this paper we address the design of a mixed analogue-digital processor for pulse-shape analysis of signals delivered by large volume High-Purity-Germanium (HPGe) detectors for gamma-ray spectroscopy. The information to be extracted from pulse-shape analysis is the position of the interaction of the γ photon inside the detector. We discuss the structure of the measurement apparatus and the required characteristics of its components, with a special emphasis on the resolution and sampling frequency of the analogue-to-digital converter (ADC). We also address the problem of the occurrence time estimate of the events, which is strictly related to the pulse shape. A modular hardware solution for pulse-shape measurements is proposed
Keywords :
gamma-ray detection; germanium radiation detectors; Ge; analogue-to-digital converter; front-end design rules; gamma-ray tracking; large-volume Ge detectors; measurement requirements; mixed analogue-digital processor; modular hardware solution; occurrence time estimate; pulse-shape analysis; Data mining; Frequency measurement; Gamma ray detection; Gamma ray detectors; Information analysis; Pulse measurements; Signal analysis; Signal design; Signal processing; Spectroscopy;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776153
