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Title: Lung pair phantom

The present invention is a material and method of making the material that exhibits improved radiation attenuation simulation of real lungs, i.e., an ``authentic lung tissue`` or ALT phantom. Specifically, the ALT phantom is a two-part polyurethane medium density foam mixed with calcium carbonate, potassium carbonate if needed for K-40 background, lanthanum nitrate, acetone, and a nitrate or chloride form of a radionuclide. This formulation is found to closely match chemical composition and linear attenuation of real lungs. The ALT phantom material is made according to established procedures but without adding foaming agents or preparing thixotropic concentrate and with a modification for ensuring uniformity of density of the ALT phantom that is necessary for accurate simulation. The modification is that the polyurethane chemicals are mixed at a low temperature prior to pouring the polyurethane mixture into the mold.
Inventors:
; ;
Issue Date:
OSTI Identifier:
140715
Assignee:
Battelle Memorial Inst., Richland, WA (United States) PTO; SCA: 560101; PA: EDB-94:057886; SN: 94001164747
Patent Number(s):
US 5,266,035/A/
Application Number:
TRN: 94:018514
Contract Number:
AC06-76RL01830
Resource Relation:
Other Information: PBD: 30 Nov 1993
Research Org:
Battelle Memorial Institute
Country of Publication:
United States
Language:
English
Subject:
56 BIOLOGY AND MEDICINE, APPLIED STUDIES; PHANTOMS; DESIGN; LUNGS; RADIATION DOSES; TISSUE-EQUIVALENT MATERIALS; RADIATION DOSE DISTRIBUTIONS