Title:
METHOD OF DETECTING NEUTRON ABSORPTION CAPACITY OF CONTROL ELEMENT OF NUCLEAR INSTALLATION
Document Type and Number:
Japanese Patent JP2023085386
Kind Code:
A
Abstract:
To provide a detection device capable of being used to detect neutron absorption capacity of a control element of a nuclear installation.SOLUTION: A detection device includes a neutron transmission imaging device and a robot device. The neutron transmission imaging device includes a neutron emission source of variable strength, a detector array, a mask device and a positioning robot, and all of them are under the control of a central processing and data collection unit. The neutron emission source is switchable between an ON state with variable source strength and an OFF state. The neutron emission source is located on one side of a wing of the control element to generate a neutron stream. The detector array is located on the opposite side of the wing, and the neutron emission source and the detector array are operated by the robot to advance along the wing. The detector array is monitored in real time, and when various masks of the mask device are positioned between the neutron emission source and the detector array, a position at which neutrons pass through on a blade can be specified more specifically.SELECTED DRAWING: Figure 1
Inventors:
DAVID L STUCKER
Application Number:
JP2023049121A
Publication Date:
June 20, 2023
Filing Date:
March 26, 2023
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CO LLC
International Classes:
G21C17/10; G01N23/05; G01N23/09; G01N23/18
Attorney, Agent or Firm:
Yoshihiro City
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