Rotating laminar emission camera with Ge-detector: further developments.
A germanium (Ge) camera with laminar collimator-detector geometry, ROLEC, simulating a 195 X 195 mm2 detection area, has been constructed and tested. The detector consists of five separate Ge blocks grooved into distinct electrical channels. Results show that ROLEC measuring times have to be about 3 X greater than Anger camera measuring times to achieve a 5% signal-to-noise ratio with each device. Both spatial and energy resolution of the ROLEC exceed that of the Anger camera but sensitivity variations along the detector strips pose a significant problem in development of a clinically useful device.
University of Florida, Department of Radiology, Gainesville 32610.
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W
Mauderli
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LT
Fitzgerald
D000818:Animals; D003037:Cobalt Radioisotopes; D005857:Germanium; D006801:Humans; D008953:Models, Anatomic; D011877:Radionuclide Imaging / Q000295:instrumentation*; D051381:Rats
D003037:Cobalt Radioisotopes; D005857:Germanium