title: Thick Silicon Double-Sided Strip Detectors for Low-Energy Small-Animal SPECT.
abstract: 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.
authors.affiliation: Institute of Imaging Science, Vanderbilt University, Nashville, TN 37232-2310 USA.
authors.forename: Sepideh
authors.initials: S
authors.lastname: Shokouhi
authors.forename: Benjamin S
authors.initials: BS
authors.lastname: McDonald
authors.forename: Heather L
authors.initials: HL
authors.lastname: Durko
authors.forename: Mark A
authors.initials: MA
authors.lastname: Fritz
authors.forename: Lars R
authors.initials: LR
authors.lastname: Furenlid
authors.forename: Todd E
authors.initials: TE
authors.lastname: Peterson