Engineering developments on the UBC-Triumf modified PETT VI positron emission tomograph

Journal Article · Tue Feb 01 04:00:00 EST 1983 · IEEE Trans. Nucl. Sci.; (United States)

DOI:https://doi.org/10.1109/TNS.1983.4332361· OSTI ID:6257853

Evans, B; Harrop, R; Heywood, D; Mackintosh, J; Moore, R W; Pate, B D; Rogers, J G; Ruth, T J

A tomograph with the PETT VI geometry has been built with improvements generally applicable to such devices. In addition to improved temperature control, the gantry features commercial CsF detectors with the newer Amperex photomultiplier tubes (PMT's). Much of the coincidence support circuitry is of an original design, utilizing new ''fast'' TTL family devices. A local DEC 11/23 microprocessor provides for routine diagnostic and reliability checking, gantry control, and acquisition of single detector counting rates. Image reconstruction and display is performed by a medium size VAX 11/780 computer, operating in a time-sharing environment. Some preliminary performance characteristics of the machine have been measured. The reconstructed resolution in-slice, as well as the reconstructed slice thickness, has been measured as a function of radius for both ''straight'' and ''cross'' slices.

• Research Organization: Triumf, University of British Columbia, Vancouver, B.C., V6T 2A3
• OSTI ID: 6257853
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 30:1; ISSN IETNA
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
CESIUM FLUORIDES
COINCIDENCE CIRCUITS
COMPUTERIZED TOMOGRAPHY
COMPUTERS
CONTROL
DEC COMPUTERS
DIAGNOSTIC TECHNIQUES
ELECTRONIC CIRCUITS
EMISSION COMPUTED TOMOGRAPHY
ENGINEERING
FLUORIDES
FLUORINE COMPOUNDS
GEOMETRY
HALIDES
HALOGEN COMPOUNDS
MATHEMATICS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PERFORMANCE
PHOTOMULTIPLIERS
PHOTOTUBES
POSITRON COMPUTED TOMOGRAPHY
RADIATION DETECTORS
TEMPERATURE CONTROL
TOMOGRAPHY