Title :
A preliminary evaluation of a cylindrical SPECT-camera
Author :
Larsson, S.A. ; Bohm, C. ; Carnebrink, T. ; Hovander, B. ; Bergqvist, M. ; Ribbe, T. ; Eriksson, L. ; Widén, L.
Author_Institution :
Karolinska Inst., Stockholm, Sweden
Abstract :
Summary form only given, as follows. The Stockholm University and Karolinska Hospital cylindrical SPECT (single photon emission computed tomography) camera is currently being assembled. The construction has now reached a stage where preliminary evaluations can be made. The basic component of the system is an 180-cm-high cylindrical NaI(Tl) scintillator with an inner diameter of 30 cm. Early measurements of position and energy resolutions with individual local acquisition groups have proved encouraging. With densely packed 60-mm hexagonal PM-tubes with curved front end windows, energy resolutions of 10% or less have been recorded for 140-keV photons. Further optimizations are expected to lead to minor additional improvements
Keywords :
biomedical equipment; cameras; computerised tomography; radioisotope scanning and imaging; 140 keV; 18 cm; 30 cm; 60 mm; Karolinska Hospital; NaI:Tl; Stockholm University; cylindrical SPECT-camera; energy resolution; medical diagnostic imaging; medical instrumentation; nuclear medicine; position resolution; single photon emission computed tomography; Assembly; Cameras; Energy measurement; Energy resolution; Hospitals; Physics; Position measurement; Single photon emission computed tomography;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301455
