Point-Source Measurements using a Dome Shaped CsI Detector for Cardiac SPECT

Joyoni Dey, Louisiana State University
Narayan Bhusal, Louisiana State University
Kenneth Matthews, Louisiana State University
Paul Maggi, Louisiana State University
Mitali More, Radiation Monitoring Devices, Inc.
Charlie Brecher, Radiation Monitoring Devices, Inc.
Vivek Nagarkar, Radiation Monitoring Devices, Inc.


We present feasibility studies of an economically built curved CsI dome for a high performance Cardiac SPECT application. The dome CsI was 99% of standard CsI density and mechanically stable. The light yield was 56% of a standard CsI crystal. Subsequently we successfully performed point-source position-sensitive scintillation light measurement experiments on a CsI:Tl domed sample, with a simple fiber-optic readout. The economical technique of building the detector shown here will be investigated further over the long term future.