NDT Example - Neutron Beam CT (NBCT) on Tornado jet turbine blade's cooling hole B

Acknowledgement - The Tornado jet turbine blade was measured by neutron tomography at Paul Scherrer Institut (PSI), Switzerland. The following image is the cross-section of the turbine blade. This is the first application of the de-convolution technique developed by Image Enhancement Technology Ltd on images taken by neutron imaging. The image is provided by Dr. Shu Yan Zhang, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Oxfordshire. We would like to thank EU access programme NMI3 for the financial support to cover the travel expenses for experiment at PSI.

Original image of #0620
with Region Of Interest (ROI) on Hole B

7x ROI of Hole B
before enhancement

7x ROI of Hole B
before enhancement
with edge-dot profile

7x ROI of Hole B
after enhancement
with edge-dot profile

7x ROI of Hole B
after enhancement
without edge-dot profile

7x ROI of Hole B
after enhancement
with outlining & annotations for measurements

A = 280 pixel² => .049 mm²,
Length of fracture = 1.63+1.01+1.18+3.34 = 7.16 pixel => .094 mm


Before and after enhancement, side-by-side:

'before' 'after'

Click this image for an animated view of 50 enhanced images of Hole B: