SYSTEM AND METHOD FOR DETECTING LEAKAGE OF NUCLEAR REACTOR COOLANT USING LASER INDUCED EMISSION SPECTRUM
First Claim
1. An apparatus for detecting leakage of nuclear reactor coolant, comprising:
- a laser generator for generating laser beam;
a laser focusing lens for focusing the laser beam generated by the laser generator;
an emission collector for inducing a plasma emission on a target material when the laser beam focused by the laser focusing lens is concentrated, and collecting light from the induced plasma emission; and
an emission spectrum analyzer for analyzing the light of the plasma emission collected by the emitted light collector.
1 Assignment
0 Petitions
Accused Products
Abstract
System and method for detecting and/or predicting in a field the leakage of nuclear reactor coolant that may occur at the pressure boundary of the primary system of a nuclear reactor. The system and method for detecting the leakage of nuclear reactor coolant uses a laser induced emission spectrum. The leakage of coolant is detected by detecting boron (B), a main component of the coolant, in corrosive products generated at the nuclear reactor pressure boundary on the basis of laser spectroscopy. An embodiment of the system for detecting leakage of nuclear reactor coolant may include a laser generator, a laser focusing lens, an emission collector, and emission spectrum analyzer.
-
Citations
18 Claims
-
1. An apparatus for detecting leakage of nuclear reactor coolant, comprising:
-
a laser generator for generating laser beam; a laser focusing lens for focusing the laser beam generated by the laser generator; an emission collector for inducing a plasma emission on a target material when the laser beam focused by the laser focusing lens is concentrated, and collecting light from the induced plasma emission; and an emission spectrum analyzer for analyzing the light of the plasma emission collected by the emitted light collector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus for detecting leakage of nuclear reactor coolant, comprising:
-
a laser generator for generating laser beam; a laser focusing lens for focusing the laser beam generated by the laser generator; an emission collector for inducing a plasma emission on a target material when the laser beam focused by the laser focusing lens is concentrated, and collecting light from the induced plasma emission; an emission spectrum analyzer for analyzing the light of the plasma emission collected by the emitted light collector; and an ultrasonic generation laser or a compressed air jetting device for temporarily eliminating water from surroundings of the target material. - View Dependent Claims (13, 14)
-
-
15. A method of detecting leakage of nuclear reactor coolant, the method being performed using an apparatus for detecting leakage of nuclear reactor coolant, which includes a laser generator for generating laser beam;
- a laser focusing lens for focusing the laser beam generated by the laser generator;
an emission collector for inducing a plasma emission on a target material when the laser beam focused by the laser focusing lens is concentrated, and collecting light from the induced plasma emission; and
an emission spectrum analyzer for analyzing the light collected by the emitted light collector, comprising;a) causing at least the laser focusing lens and the emitted light collector of the apparatus to approach the target material; b) controlling a focal distance of the laser beam with respect to the target material after a); c) after the focal distance has been controlled, radiating the laser beam onto the target material; d) collecting light of a plasma emission induced on the target material at c) by using the emitted light collector; and e) analyzing the collected light. - View Dependent Claims (16, 17, 18)
- a laser focusing lens for focusing the laser beam generated by the laser generator;
Specification