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Technology development of 3D detectors for high-energy physics and imaging

Pellegrini, G and Roy, P and Bates, R and Jones, D and Mathieson, K and Melone, J and O'Shea, V and Smith, KM and Thayne, I and Thornton, P and Linnros, J and Rodden, W (2002) Technology development of 3D detectors for high-energy physics and imaging. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 487 (1-2). pp. 19-26. ISSN 0168-9002

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Abstract

Various fabrications routes to create ‘3D’ detectors have been investigated and the electrical characteristics of these structures have been compared to simulations. The geometry of the detectors is hexagonal with a central anode surrounded by six cathode contacts. A uniform electric field is obtained with the maximum drift and depletion distance set by electrode spacings rather than detector thickness. This should improve the ability of silicon to operate in the presence of the severe bulk radiation damage expected in high-energy colliders. Moreover, 3D detectors made with other materials (e.g. GaAs, SiC) may be used, for example, in X-ray detection for medical imaging. Holes in the substrate were made either by etching with an inductively coupled plasma machine, by laser drilling or by photochemical etching. A number of different hole diameters and thickness have been investigated. Experimental characteristics have been compared to MEDICI simulations.

Item type: Article
ID code: 37552
Notes: 3rd International Workshop on Radiation Imaging Detectors, OROSEI, ITALY, SEP 23-27, 2001
Keywords: 3D detectors , radiation hardness, semiconductors , medical imaging , Optics. Light, Instrumentation, Nuclear and High Energy Physics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Faculty of Science > Institute of Photonics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 09 Feb 2012 16:34
    Last modified: 05 Sep 2014 15:01
    URI: http://strathprints.strath.ac.uk/id/eprint/37552

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