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

G Pellegrini, P Roy, R Bates, D Jones, K Mathieson, J Melone, V O'Shea, KM Smith, I Thayne, P Thornton, J Linnros, W Rodden

Research output: Contribution to journalArticle

44 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume487
Issue number1-2
DOIs
Publication statusPublished - 11 Jul 2002

Fingerprint

High energy physics
Detectors
Imaging techniques
physics
detectors
Etching
etching
laser drilling
energy
Colliding beam accelerators
Radiation damage
Medical imaging
Inductively coupled plasma
radiation damage
Drilling
Anodes
depletion
Cathodes
anodes
simulation

Keywords

  • 3D detectors
  • radiation hardness
  • semiconductors
  • medical imaging

Cite this

Pellegrini, G ; Roy, P ; Bates, R ; Jones, D ; Mathieson, K ; Melone, J ; O'Shea, V ; Smith, KM ; Thayne, I ; Thornton, P ; Linnros, J ; Rodden, W. / Technology development of 3D detectors for high-energy physics and imaging. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2002 ; Vol. 487, No. 1-2. pp. 19-26.
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Technology development of 3D detectors for high-energy physics and imaging. / Pellegrini, G; Roy, P; Bates, R; Jones, D; Mathieson, K; Melone, J; O'Shea, V; Smith, KM; Thayne, I; Thornton, P; Linnros, J; Rodden, W.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 487, No. 1-2, 11.07.2002, p. 19-26.

Research output: Contribution to journalArticle

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AU - Pellegrini, G

AU - Roy, P

AU - Bates, R

AU - Jones, D

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AU - O'Shea, V

AU - Smith, KM

AU - Thayne, I

AU - Thornton, P

AU - Linnros, J

AU - Rodden, W

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