METHOD AND ARRANGEMENT FOR DETERMINING THE C-CONTENT IN CHEMICAL PROCESSES
First Claim
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2. The method as defined in claim 1 comprising the step of selecting periods of activation and periods of suspended activation having a length of the order of magnitude of the half-life of B12.
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Abstract
Continuous neutron activation analysis of a material undergoing chemical processing uses the intermittent bombardment of the material by a flux of neutrons of specific energy. The periods of bombardment alternate with periods of gamma ray analysis. The length of exposure time to the neutron flux and the time intervals between successive exposure periods, as well as the relation between these values and the half-life values of the nucleides are essential parameters in determining the carbon content of the material.
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7 Claims
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2. The method as defined in claim 1 comprising the step of selecting periods of activation and periods of suspended activation having a length of the order of magnitude of the half-life of B12.
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3. The method as defined in claim 1, comprising the step of selecting neutrons of 14 Mev energy for activation of said material.
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4. The method as defined in claim 1, comprising the step of interspersing an activation period of 0.1 milliseconds with a period of suspended activation of 0.1 milliseconds.
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5. The method as defined in claim 1, comprising the sTep of interspersing an activation period of 5 milliseconds with a period of suspended activation of 5 milliseconds.
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6. The method as defined in claim 1 comprising the step of interspersing an activation period of 10 milliseconds with a period of suspended activation of 10 milliseconds.
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7. The method as defined in claim 1, comprising the step of interspersing an activation period of 20 milliseconds. with a period of suspended activation of 20 milliseconds.
Specification