Non-destructive method for determining neutron exposure and constituent concentrations of a body

Patent · Wed Jan 01 04:00:00 EST 1986

OSTI ID:866050

Gold, Raymond ^[1]; McElroy, William N ^[1]

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1. Richland, WA

A non-destructive method for determination of neutron exposure and constituent concentrations in an object, such as reactor pressure vessel, is based on the observation of characteristic gamma-rays emitted by activation products in the object by using a unique continuous gamma-ray spectrometer. The spectrometer views the object through appropriate collimators to determine the absolute emission rate of these characteristic gamma-rays, thereby ascertaining the absolute activity of given activation products in the object. These data can then be used to deduce the spatial and angular dependence of neutron exposure or the spatial constituent concentration at regions of interest within the object.

• Research Organization: WESTINGHOUSE HANFORD CO
• DOE Contract Number: AC14-76FF02170
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4622200
• OSTI ID: 866050
• Country of Publication: United States
• Language: English

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characteristic
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concentrations
constituent
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continuous
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deduce
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emission
emitted
exposure
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method
neutron
neutron exposure
non-destructive
non-destructive method
observation
pressure
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products
rate
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reactor
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regions
spatial
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