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Low-contrast phantom for daily quality control

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:6823151
A simple phantom is proposed to provide a low-contrast test object for daily quality assurance. The phantom consists of four quarters and five dimes taped to a Plexiglas plate. For daily quality control, the phantom is used with 5 cm of Plexiglas as scattering material and a flood source. Examples of images are presented for several gamma cameras, illustrating some of the information that can be obtained. In particular, we present examples of cameras providing improper imaging performance with the coin phantom but with normal floods and bar-phantom images. The major conclusion is that daily quality-control images should include significant amounts of scattering material and low-contrast objects.
Research Organization:
Univ. of Washington, Seattle
OSTI ID:
6823151
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 22:3; ISSN JNMEA
Country of Publication:
United States
Language:
English