Advanced photodiode detector for medical CT imaging: Design and performance

Fan Ji, Mikko Juntunen, Iiro Hietanen, Simo Eränen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

3 Citations (Scopus)

Abstract

This paper presents an advanced photodiode detector design for medical imaging applications, especially computerized tomography. The detector is silicon based and integrates the through-wafer interconnection technology into conventional front illuminated photodiode. The number of photodiode elements in the detector can be extended in 2D without reducing the photodiode active area. The signal of each photodiode element can be directly read out from the backside of the detector. Moreover, detectors can be tiled together in 2D without any physical limitation. A test photodiode detector was designed and demonstrated with 3times3 photodiode matrix arrangement in this paper. Different parameters were measured and analyzed from the demonstrated chip and test structures. The results show that the detector inherits most of the performance advantages from the conventional front illuminated photodiode, and all the parameters can either meet or exceed the requirements of modern CT systems.
Original languageEnglish
Title of host publication2007 IEEE International Symposium on Industrial Electronics
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages2730-2735
ISBN (Electronic)978-1-4244-0755-2
ISBN (Print)978-1-4244-0754-5
DOIs
Publication statusPublished - 2007
MoE publication typeA4 Article in a conference publication
Event2007 IEEE International Symposium on Industrial Electronics - Vigo, Spain
Duration: 4 Jun 20077 Jun 2007

Publication series

SeriesIEEE International Symposium on Industrial Electronics
ISSN2163-5137

Conference

Conference2007 IEEE International Symposium on Industrial Electronics
CountrySpain
CityVigo
Period4/06/077/06/07

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