Method for determining radionuclide compositions in sales
AssigneeBIL Solutions Limited
InventorsChristopher Henry Orr, John Paul Ronaldson
Life of this patent
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Abstract
A method of determining a function and a method of monitoring using a function is provided in which the function relates the proportion of one or more radionuclides detectable using a radiometric instrument to one or more radionuclides which cannot readily be detected using a radiometric instrument to provide more reliable results.
Claims19
A method for monitoring a process stream, the method comprising:
- obtaining information on emissions arising from one or more radionuclides in the process stream using a detector;
- calculating further information on one or more other radionuclides in the process stream using the information and a function;
- wherein the function relates the proportion of the one or more radionuclides to the proportion of the one or more other radionuclides and the function is determined by a method including the steps of:
- collecting two or more samples from a process stream;
- determining the activity for two or more radionuclides in the samples collected from the process stream;
- calculating the proportion of the total activity determined which is attributed to each of the radionuclides for which a determination of activity is made, for each of the samples;
- and
- combining the proportions to give the function.
A method for monitoring a process stream, the method comprising:
- obtaining information on emissions arising from one or more radionuclides in a process stream using a detector, the process stream being formed by the combination of two or more other process streams;
- calculating further information on one or more other radionuclides in the process stream using the information and the function;
- wherein the function relates the proportion of the one or more radionuclides to the proportion of the one or more other radionuclides and the function is determined by a method which includes:
- collecting a sample from each of two or more process streams;
- determining the activity for two or more radionuclides in the samples collected from the process streams;
- providing a weighting for each of the process streams, the weighting being provided according to the proportion of the total activity arising from each of the process streams;
- combining the activity for a radionuclide from one process stream with the activity for the same radionuclide from the other process streams according to the weightings for the process streams to give the function.
A method for determining a function, the function relating the proportion of one or more radionuclides to one or more other radionuclides, the method comprising:
- collecting two or more samples from a process stream;
- determining the activity for two or more radionuclides in the samples collected from the process stream,
- calculating the proportion of the total activity determined which is attributed to each of the radionuclides for which a determination of activity is made, for each of the samples;
- combining the proportions to give the function.
A method for determining a function, the function relating the proportion of one or more radionuclides to one or more other radionuclides, the method comprising:
- collecting a sample from each of two or more process streams;
- determining the activity for two or more radionuclides in the samples collected from the process streams,
- providing a weighting for each of the process streams, the weighting being provided according to the proportion of the total activity arising from each of the process streams;
- combining the activity for a radionuclide from one process stream with the activity for the same radionuclide from the other process streams according to the weightings for the process streams to give the function.
Dependencies are inferred from the claim text.