Multi-channel Detector Module for Multi-energy Gamma Ray Computed Tomography
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
In this paper an enhanced signal processing electronics for an existing multi-channel detector module for gamma ray computed tomography is presented. The detector electronics is able to evaluate gamma photon energies by measuring pulse duration times, which makes it perfectly suitable for attenuation measurements with multi-energy and/or multiple isotopic sources. The duration time of each voltage pulse generated by a gamma photon within the radiation detector is measured using a complex programmable logic device. A sophisticated logic circuit for eight detector channels is designed to acquire the pulse duration time spectra in a total of 256 channels per detector channel in parallel. This paper introduces the basic concept, describes the general and a specific CPLD design, provides an analysis of the accuracy and presents measured pulse duration time spectra.
Details
Original language | English |
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Pages (from-to) | 349-360 |
Number of pages | 12 |
Journal | Journal of Signal Processing Systems |
Volume | 94 |
Issue number | 4 |
Publication status | Published - Apr 2022 |
Peer-reviewed | Yes |
Keywords
ASJC Scopus subject areas
Keywords
- Complex programmable logic device, Gamma ray computed tomography, Radiation detection