Cargando…

Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections

CdZnTe detectors have been under development for the past two decades, providing good stopping power for gamma rays, lightweight camera heads and improved energy resolution. However, the performance of this type of detector is limited primarily by incomplete charge collection problems resulting from...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhang, Qiushi, Zhang, Congzhe, Lu, Yanye, Yang, Kun, Ren, Qiushi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3649434/
https://www.ncbi.nlm.nih.gov/pubmed/23429509
http://dx.doi.org/10.3390/s130202447
_version_ 1782268970987945984
author Zhang, Qiushi
Zhang, Congzhe
Lu, Yanye
Yang, Kun
Ren, Qiushi
author_facet Zhang, Qiushi
Zhang, Congzhe
Lu, Yanye
Yang, Kun
Ren, Qiushi
author_sort Zhang, Qiushi
collection PubMed
description CdZnTe detectors have been under development for the past two decades, providing good stopping power for gamma rays, lightweight camera heads and improved energy resolution. However, the performance of this type of detector is limited primarily by incomplete charge collection problems resulting from charge carriers trapping. This paper is a review of the progress in the development of CdZnTe unipolar detectors with some data correction techniques for improving performance of the detectors. We will first briefly review the relevant theories. Thereafter, two aspects of the techniques for overcoming the hole trapping issue are summarized, including irradiation direction configuration and pulse shape correction methods. CdZnTe detectors of different geometries are discussed in detail, covering the principal of the electrode geometry design, the design and performance characteristics, some detector prototypes development and special correction techniques to improve the energy resolution. Finally, the state of art development of 3-D position sensing and Compton imaging technique are also discussed. Spectroscopic performance of CdZnTe semiconductor detector will be greatly improved even to approach the statistical limit on energy resolution with the combination of some of these techniques.
format Online
Article
Text
id pubmed-3649434
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-36494342013-06-04 Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections Zhang, Qiushi Zhang, Congzhe Lu, Yanye Yang, Kun Ren, Qiushi Sensors (Basel) Review CdZnTe detectors have been under development for the past two decades, providing good stopping power for gamma rays, lightweight camera heads and improved energy resolution. However, the performance of this type of detector is limited primarily by incomplete charge collection problems resulting from charge carriers trapping. This paper is a review of the progress in the development of CdZnTe unipolar detectors with some data correction techniques for improving performance of the detectors. We will first briefly review the relevant theories. Thereafter, two aspects of the techniques for overcoming the hole trapping issue are summarized, including irradiation direction configuration and pulse shape correction methods. CdZnTe detectors of different geometries are discussed in detail, covering the principal of the electrode geometry design, the design and performance characteristics, some detector prototypes development and special correction techniques to improve the energy resolution. Finally, the state of art development of 3-D position sensing and Compton imaging technique are also discussed. Spectroscopic performance of CdZnTe semiconductor detector will be greatly improved even to approach the statistical limit on energy resolution with the combination of some of these techniques. Molecular Diversity Preservation International (MDPI) 2013-02-18 /pmc/articles/PMC3649434/ /pubmed/23429509 http://dx.doi.org/10.3390/s130202447 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Review
Zhang, Qiushi
Zhang, Congzhe
Lu, Yanye
Yang, Kun
Ren, Qiushi
Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title_full Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title_fullStr Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title_full_unstemmed Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title_short Progress in the Development of CdZnTe Unipolar Detectors for Different Anode Geometries and Data Corrections
title_sort progress in the development of cdznte unipolar detectors for different anode geometries and data corrections
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3649434/
https://www.ncbi.nlm.nih.gov/pubmed/23429509
http://dx.doi.org/10.3390/s130202447
work_keys_str_mv AT zhangqiushi progressinthedevelopmentofcdznteunipolardetectorsfordifferentanodegeometriesanddatacorrections
AT zhangcongzhe progressinthedevelopmentofcdznteunipolardetectorsfordifferentanodegeometriesanddatacorrections
AT luyanye progressinthedevelopmentofcdznteunipolardetectorsfordifferentanodegeometriesanddatacorrections
AT yangkun progressinthedevelopmentofcdznteunipolardetectorsfordifferentanodegeometriesanddatacorrections
AT renqiushi progressinthedevelopmentofcdznteunipolardetectorsfordifferentanodegeometriesanddatacorrections