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

Patent · Wed Jan 01 00:00:00 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

Related Subjects

non-destructive
method
determining
neutron
exposure
constituent
concentrations
determination
reactor
pressure
vessel
based
observation
characteristic
gamma-rays
emitted
activation
products
unique
continuous
gamma-ray
spectrometer
views
appropriate
collimators
determine
absolute
emission
rate
ascertaining
activity
data
deduce
spatial
angular
dependence
concentration
regions
reactor pressure
pressure vessel
non-destructive method
rays emitted
neutron exposure
constituent concentrations
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