Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2011-07-05
2011-07-05
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
Reexamination Certificate
active
07973285
ABSTRACT:
An apparatus and a method for detecting a leakage of heavy water in a nuclear reactor system includes: a diode laser that injects a generated laser beam to a test sample placed in a light absorption cell; a vacuum pump adjusts a degree of vacuum in the light absorption cell; a test sample introduction unit gathers an air test sample from a location with a high possibility of a leakage of heavy water or a light water test sample from a secondary side of a steam generator and transfers the sample to the light absorption cell; an optical detector detects the laser beam which has passed through the light absorption cell; and a microprocessor controls the operation of the diode laser, the vacuum pump, the test sample introduction unit, and the optical detector, receives a detect signal from the optical detector, and analyzes an absorption spectrum signal.
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Han Jae Min
Jeong Do Young
Kim Taek Soo
Ko Kwang Hoon
Kim Kiho
Korea Atomic Energy Research Institute
Korea Hydro & Nuclear Power Co., Ltd.
Porta David P
The Webb Law Firm
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