RT Journal Article
SR Electronic
T1 Point-Source Scanner for Assessment of Gamma Camera Performance
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 25
OP 28
VO 20
IS 1
A1 Jonson, Ragnar
A1 Frid, Ove
YR 1992
UL http://tech.snmjournals.org/content/20/1/25.abstract
AB A point-source scanner was made from a mechanically modified x-y plotter. The pen carriage was stabilized so that it could carry a lead can with a radiation source. It was also made longer so that the scanner would see the whole field of view of a rectangular scintillation camera. The movements of the scanner were controlled by a computer. The statistical uncertainty in the scanning movement, including speed, angle, and distance variations, was less than 1% (1 s.d.). The point-source scanner was used to acquire uniformity matrices for different radiation sources and to generate different kinds of line-source and resolution phantoms.