Patent ID: 8638897
Filing Date: 2014-01-28
Classification: G21C,Y02E

Abstract:
1. An underwater remote surface inspection method for a reactor constituting member comprising the steps of: carrying a replica picking head having a replica agent supply region provided with an opening, into a reactor vessel filled with water; pressing said replica picking head against a surface of a reactor constituting member in a state where said opening faces the surface of the reactor constituting member disposed in said reactor vessel; allowing a replica agent to contact with the surface of said reactor constituting member by supplying said replica agent into said replica agent supply region inside said pressed replica picking head; and applying an ultrasonic wave to the replica agent inside said replica picking head, wherein a frequency of said ultrasonic wave applied to said replica agent is modulated, and wherein the frequency of said ultrasonic wave applied to said replica agent is modulated during the applying thereof.