Radiant energy – Calibration or standardization methods
Patent
1982-05-10
1985-02-12
Howell, Janice A.
Radiant energy
Calibration or standardization methods
G01D 1800, G12B 1300
Patent
active
044993757
ABSTRACT:
A phantom for testing nuclear imaging instruments, such as are used in nuclear medicine, includes a hollow, cylindrical case with a removable carrier. The carrier contains several sets of straight, parallel rods which are of uniform cross section throughout and which have equal orthogonal dimensions in a plane perpendicular to rod alignment. The rods are arranged in an array with uniform spacing therebetween in each set. Several spheres are mounted on posts which screw into the base of the case so that the spheres are oriented in a plane perpendicular to the rod alignment. A pair of capillary tubes are secured to closure caps which are threadably engageable in access openings in the top of the case. The capillary tubes are insertable into circular, laterally stabilizing wells in the bottom of the case.
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Hannaher Constantine
Howell Janice A.
Thomas Charles H.
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