Device and Method for Determining Activity of Radiopharmaceutical Material
First Claim
1. A system for measuring radioactive material, comprising:
- a fluid path for receiving at least one aliquot;
an aliquot positioner formed with a concave surface and connected to the fluid path and capable of receiving the at least one aliquot therefrom; and
a detector located at an axial distance from the aliquot positioner and operable to determine the level of radioactivity of the at least one aliquot disposed in the aliquot positioner.
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Accused Products
Abstract
A detector system measures radioactive material. A fluid path receives at least one aliquot of radiopharmaceutical. The fluid path locates the aliquot within a positioner formed with a concave configuration. A detector is located at an axial distance from the concave surface and determines the level of radioactivity of the aliquot. Alternatively, the fluid path may be less concave and a variable attenuator may be placed between the fluid path and detector. The variable attenuator may have a concavity that is based on the concavity of the fluid path so that the detector'"'"'s ability to read the radioactivity is optimized. A method for forming an aliquot of radiopharmaceutical in a concave fluid passage. Positioning a detector located a distance from the concave surface to optimize reading spectral energy of the aliquot and activity is determining activity regardless of the position of the aliquot in the passage.
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Citations
20 Claims
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1. A system for measuring radioactive material, comprising:
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a fluid path for receiving at least one aliquot; an aliquot positioner formed with a concave surface and connected to the fluid path and capable of receiving the at least one aliquot therefrom; and a detector located at an axial distance from the aliquot positioner and operable to determine the level of radioactivity of the at least one aliquot disposed in the aliquot positioner. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for measuring radioactive material, comprising:
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a fluid path for receiving at least one aliquot releasing radioactive energy; a selectable positioner directing the radioactive energy; and a detector located at a distance from the selectable positioner and operable to determine the level of radioactivity of the at least one aliquot disposed in the selectable positioner, wherein the selectable positioner includes at least one of a variable attenuator or a aliquot positioner having a concave configuration. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method for measuring activity of an aliquot, comprising:
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forming an aliquot in a concave shaped fluid passage; providing a detector a distance from the concave shaped surface; and reading spectral energy of the aliquot thereby determining the activity. - View Dependent Claims (19, 20)
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Specification