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