Barium-based standards and associated devices, systems, and methods
AssigneeInternational Isotopes, Inc.
InventorsJohn J. Miller, Daniel J. Kalas
Life of this patent
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Abstract
The present technology is directed to barium-133 (“Ba-133”) based standards that simulate expected energy emissions of iodine-131 (“I-131”), and thus can be used to calibrate radioactivity measuring instruments (e.g., dose calibrators) used to measure the radioactivity of I-131 drug products. The Ba-133 standards can be manufactured in geometries typical of those used to administer I-131 drug products, including, for example, as a capsule, a syringe, a vial, etc.
Claims15
A barium-133 (Ba-133) based standard for calibrating an iodine-131 (I-131) radioactivity measuring instrument, the Ba-133 based standard comprising:
- a container having one or more walls forming an enclosed chamber;
- and
- a source matrix including Ba-133 positioned within the enclosed chamber, wherein Ba-133 is the sole radionuclide in the source matrix,
- wherein the container attenuates X ray emissions from the source matrix.
Dependencies are inferred from the claim text.