Patent ID: 11903750
Assignee: SIEMENS MEDICAL SOLUTIONS USA, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 7:
8. A calibration source for medical emission tomography, the calibration source comprising:
a first pellet comprising a mix of cured epoxy and a first active element of a first radioisotope, wherein the first radioisotope is an isotope used for factory calibration;
a second pellet comprising a mix of cured epoxy and a second active element of a second radioisotope different than the first radioisotope, wherein the second radioisotope is a proxy source that is not used for factory calibration; and
a housing enclosing the first and second pellets, wherein the first pellet is stacked directly adjacent the second pellet within the housing.