Radiant energy – Radiation controlling means – Shields
Patent
1979-01-18
1981-08-25
Smith, Alfred E.
Radiant energy
Radiation controlling means
Shields
250252, 434218, 434262, G21K 300, G01D 1800, G09B 2328
Patent
active
042861683
ABSTRACT:
A phantom simulation imaging quality control device that effectively simulates one centimeter lesions, using steel ball bearings as gamma ray attenuators. The bearings are mounted in a synthetic resinous sheet in an orthogonal pattern. The phantom can provide uniformity, resolution, linearity, distortion and field size checks, all with a single exposure.
REFERENCES:
patent: 3348319 (1967-10-01), Harrison
patent: 4055771 (1977-10-01), Goodenough et al.
Atomic Development Corp. Trade Brochure, "Phantoms for Cameras and Scanners", undated.
Atomic Products Corp.
Fields Carolyn E.
Smith Alfred E.
Temko Charles E.
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