TRACER

TRACER is a manipulator for the control rod drive protection pipe inspection. It is designed to perform the complete ultrasound, eddy current and visual examinations of welds and control rod drive protection pipe interior.

TRACER consists of:

• control rod drive protection pipe inspection mast
• larger diameter ultrsound/eddy current module
• smaller diameter ultrsound/eddy current module
• visual testing module

Areas of inspection:

• control rod drive protection pipe welds and interior
• ultrasound (surface and volumetric) examination of control rod drive protection pipe welds
• eddy current (surface) examination of control rod drive protection pipe welds
• visual examination of control rod drive protection pipe interior

Key features

• no usage of a polar crane
• remote-controlled
• prior to starting the ultrasound/eddy current inspection, control rod drive protection pipe is plugged at the bottom and filled with water
• larger diameter control rod drive protection pipe ultrsound/eddy current module is used for inspection of the W1 and W2
• smaller diameter control rod drive protection pipe ultrasound/eddy current module is used for W3 through W5
• visual testing and ultrasound/eddy current can be performed simultaneously