Thick silicon double-sided strip detectors for low-energy small-animal SPECT

Sepideh Shokouhi, Benjamin S. McDonald, Heather L. Durko, Mark A. Fritz, Lars R. Furenlid, Todd E. Peterson

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


This work presents characterization studies of thick silicon double-sided strip detectors for a high-resolution small-animal SPECT. The dimension of these detectors is 60.4 mm × 60.4 mm × 1 mm. There are 1024 strips on each side that give the coordinates of the photon interaction, with each strip processed by a separate ASIC channel. Our measurement shows that intrinsic spatial resolution equivalent to the 59 μm strip pitch is attainable. Good trigger uniformity can be achieved by proper setting of a 4-bit DAC in each ASIC channel to remove trigger threshold variations. This is particularly important for triggering at low energies. The thick silicon DSSD (Double-sided strip detector) shows high potential for small-animal SPECT.

Original languageEnglish
Article number5076096
Pages (from-to)557-564
Number of pages8
JournalIEEE Transactions on Nuclear Science
Issue number3
StatePublished - Jun 2009

Bibliographical note

Funding Information:
Manuscript received March 25, 2008; revised August 20, 2008 and December 19, 2008. Current version published June 10, 2009. This work was supported by the NIH/NIBB under Grant R33 EB000776 and Grant P41EB002035, a Career Award at the Scientific Interface from the Burroughs Welcome Fund, and the 2008 Society of Nuclear Medicine Postdoctoral Molecular Imaging Scholar Program.


  • Low energy radiation detectors
  • Silicon DSSD

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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