Lung pair phantom

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:869037

Olsen, Peter C ^[1]; Gordon, N Ross ^[2]; Simmons, Kevin L ^[2]

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1. West Richland, WA
2. Kennewick, WA

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.

• Research Organization: Battelle Memorial Institute, Columbus, OH (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): US 5266035
• OSTI ID: 869037
• Country of Publication: United States
• Language: English

Related Subjects

lung
pair
phantom
material
method
exhibits
improved
radiation
attenuation
simulation
lungs
authentic
tissue
specifically
two-part
polyurethane
medium
density
foam
mixed
calcium
carbonate
potassium
k-40
background
lanthanum
nitrate
acetone
chloride
form
radionuclide
formulation
found
closely
match
chemical
composition
linear
according
established
procedures
adding
foaming
agents
preparing
thixotropic
concentrate
modification
ensuring
uniformity
accurate
chemicals
temperature
prior
pouring
mixture
mold
potassium carbonate
chloride form
density foam
chemical composition
calcium carbonate
radiation attenuation
improved radiation
temperature prior
exhibits improved
foaming agent
closely match
/434/