Crack Detection in Nuclear Steam Generator Tubes
LTC's patented laser-scanned penetrant inspection (LSPI™) technology is ideal for crack detection in tubes. LTC has collaborated with iP-TEC AB of Sweden to integrate our LSPI™ sensor technology with their remote penetrant delivery system. The combination of LTC’s LSPI™ sensor technology with iP-TEC’s remote penetrant delivery system enables operators to generate high-resolution and quantitative inspection results from steam generator tubes. This automated fluorescent penetrant inspection system is capable of treating and scanning a tube in a matter of minutes.
- Rapid and quantitative data acquisition
- Documentation of inspection results
- Remote / automated operation
- Near real-time results
- Rugged and portable system components
- Digital data format
- Windows™ - based software
- Can be combined with other NDT technologies, such as eddy current
The integrated penetrant delivery module and LSPI™ sensor allow operators to remotely and automatically treat and scan localized areas that are suspected to have crack indications.
The image above shows an example of typical LSPI™ test results obtained from the inner surface of 0.669 inch (17 mm) ID steam generator tubes. This new method of conducting automated fluorescent penetrant inspection (FPI) allows operators to automatically treat and scan a tube in a matter of minutes. Results are provided in a our LaserViewer™ software with quantitative “C-scan” images. Operators can measure feature geometry, print out hard-copy images and archive data for future analysis and comparison.