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GaAs Medipix2 hybrid pixel detector
Helsinki University of Technology.
Oxford Instruments Analythical Oy.
VTT.
CERN.
Show others and affiliations
2008 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 591, no 1, 174-177 p.Article in journal (Refereed) Published
Abstract [en]

A GaAs Medipix2 hybrid pixel detector based on high purity epitaxial GaAs material was successfully fabricated. The mesa type GaAs sensor with 256×256 pixels and total area of 1.4×1.4 cm2 was made of a 140-μm-thick epitaxial p–i–n structure utilizing reactive ion etching. A final thickness of approximately 110 μm for the all-epitaxial sensor element is achieved by back-thinning procedure. The sensor element is bump bonded to a Medipix2 read-out ASIC. The detector is capable of room temperature spectroscopic operation and it demonstrates the potential of GaAs for high resolution X-ray imaging systems operating at room temperature. This work describes the manufacturing process and electrical properties of the GaAs Medipix2 hybrid detector.

Place, publisher, year, edition, pages
Elsevier , 2008. Vol. 591, no 1, 174-177 p.
Keyword [en]
GaAs; Medipix2; X-ray imaging
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-7710DOI: 10.1016/j.nima.2008.03.050ISI: 000257529300042Scopus ID: 2-s2.0-44649160165OAI: oai:DiVA.org:miun-7710DiVA: diva2:128042
Conference
9th International Workshop on Radiation Imaging Detectors, Jul 22-26, 2007, Nuremberg, Germany
Note
9th International Workshop on Radiation Imaging Detectors, JUL 22-26, 2007, Nuremberg, GERMANYAvailable from: 2008-12-11 Created: 2008-12-11 Last updated: 2011-07-21Bibliographically approved

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Fröjdh, Christer
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf