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Title
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Design of a high resolution scintillator based SPECT detector (SPECTatress)
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Author
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Abstract
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| SPECT scanners using multi-pinhole collimators benefit from compact detectors having a high spatial resolution. Such detectors can be placed closer to the collimator and perpendicular to the pinhole axis (thereby limiting DOI spatial resolution degradation). Current clinical gamma ray cameras have a large area and a poor spatial resolution. This proceeding describes the architecture of SPECTatress, a compact high resolution gamma camera. The main components (PMT and scintillator) are presented, a brief overview of the read-out electronics is given and a first measurement using the center-of-gravity (COG) event-positioning algorithm is shown. The result of this measurement indicates a good spatial resolution (1.75 mm FWHM) in the center of the detector. Further research has to be done on the event-positioning algorithm to extend the usable detector area and to enhance the spatial resolution. |
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Language
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English
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Source (journal)
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Nuclear instruments and methods in physics research : A: accelerators, spectrometers, detectors and associated equipment. - Amsterdam, 1984, currens
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Publication
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Amsterdam
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2011
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ISSN
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0168-9002
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DOI
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10.1016/J.NIMA.2010.12.081
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Volume/pages
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648
:S:1
(2011)
, p. S107-S110
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ISI
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000305376900029
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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