KANDE Bar is a new design of radiographic phantom designed and built by KANDE International Ltd for assessing the performance of radiographic systems.

KANDE Bar is of modular construction and consists of a number of metal bars containing artificial flaws, which are bolted together in the desired configuration.

The standard KANDE Bar contains narrow slots of a given width and a range of depths and tilts. In a typical assembly, a number of these bars (usually 40µm, 70µm and 100 µm) are bolted together with spacer bars in between.

In addition to the slotted bars, volumetric targets such as side-drilled and flat-bottom holes can also be supplied and we can even integrate coupons of material containing field-removed flaws into bars.

The modular design of the KANDE Bar makes it simple and relatively inexpensive to change the target population and the compact size makes it possible to collect a large amount of performance data in a single radiograph.

We have used a KANDE Bar assembly in studies that we have conducted into the performance of high-energy RT systems and in performance demonstrations of RT inspection procedures for the detection of PWSCC flaws in Inconel nozzles.

The KANDE Bar is not intended to be a replacement of current types of IQI, but it is envisaged that it will be especially useful for providing confirmation that the capability achieved in performance demonstration is also achieved during inspection, in the same way that representative calibration blocks are often used in UT inspection.