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.
|Number of pages||8|
|Journal||IEEE Transactions on Nuclear Science|
|State||Published - Jun 2009|
Bibliographical noteFunding 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