New and Repair welds made during shutdowns have traditionally been verified by conventional radiography. A disadvantage of this traditional technique has been:
Access is restricted around the area of radiography work whilst testing is completed due to the radioactive source.
This can delay / restrict other works.
To minimise access restrictions to other workers, shutdown managers have often used radiography on night shift, which can improve workflow but exposes the plant to additional shift costs.
A Better Way – PAUT / TOFD
The use of phased array ultrasonics (PAUT) and time of flight diffraction (TOFD) methods, often in combination, is becoming a preferred technique for ALS in delivering our highly effective shutdown inspection services.
Make an enquiry
ALS has PAUT / TOFD staff in locations across Australia. For enquiries in regard to how PAUT / TOFD can replace radiography and shorten your shutdowns.