PT  - JOURNAL ARTICLE
AU  - English, Robert J.
AU  - Polak, Joseph F.
AU  - Holman, B. Leonard
TI  - An Iterative Method for Verifying Systematic Nonuniformities in Refillable Flood Sources
DP  - 1984 Mar 01
TA  - Journal of Nuclear Medicine Technology
PG  - 7--9
VI  - 12
IP  - 1
4099  - http://tech.snmjournals.org/content/12/1/7.short
4100  - http://tech.snmjournals.org/content/12/1/7.full
SO  - J. Nucl. Med. Technol.1984 Mar 01; 12
AB  - Accurate tomographic reconstruction of data acquired from rotating scintillation cameras requires strict control of camera field uniformity. Commercially available refillable flood phantoms may develop significant bulging, producing substantial uniformity deviations that may be mistaken for camera nonuniformities, and result in artifacts on reconstructed images. We have developed an iterative method for determining the correct volume of the source, and we have studied the effects of overfilling and underfilling the flood source.