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

Volume

3

fYear

1999

fDate

1999

Firstpage

1916

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE

Conference_Location

Venice

ISSN

1091-5281

Print_ISBN

0-7803-5276-9

Type

conf

DOI

10.1109/IMTC.1999.776153

Filename

776153