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Weld integrity

Detect at the physical limits of sources for imaging through the largest material thicknesses and at the smallest micron level analysis.


Working to ensure the integrity of welds and joints

The superior performance of our detectors, and their modular three side buttable detector design makes them ideal for all types of weld integrity testing ranging from large LNG tanks to small component welds and welds on exotic materials.

With weld and joint failure being a significant cause of many diverse engineering incidents, the non-destructive inspection of welds is critical in ensuring the longevity of many engineering systems – be it through preventative maintenance or construction phase examination. The current limited performance of flat panel X-ray detectors often places constraints on the thickness of the material that can be examined. XCounter’s direct conversion CdTe detectors, with their market leading sensitivity open up the ability to examine large gauge materials at new levels of image resolution.

For example, our photon counting detectors provide solutions for large diameter, thick-walled pipe weld investigations without the need to use panoramic X-ray sources in the centre of the pipe – something that can be difficult to manage on long pipe systems and in-field applications. The ability to detect essentially every photon that passes through the pipe means that XCounter detectors can be used in diametrically opposed source-to-detector configurations in systems where older detector technology would fail.

The adaptability of our XC-Thor detectors allows simple fitting onto existing weld investigation systems with minimum impact due to their light weight and small size. Our standard software packages facilitate the ability to develop easy to use capture-and-image GUI solutions for robust field based inspection.

Market leading performance for challenging weld examination

All of the XCounter detectors outperform most TFT based flat panel detectors with Detector Quantum Efficiency (DQE) of 85% @ RQA5 spectra and a Modulation Transfer Function (MTF) of >80% @ 2lp/mm.

Examining pipe welds in thick materials requires that the source X-rays need to be of high enough energy to pass through the subject. The CdTe CMOS direct conversion technology of XCounter detectors with its high X-ray absorption capability make it ideal for high energy X-ray analysis. Our Charge Sharing Correction (CSC) software enhances the resolution and sensitivity performance of our detectors to levels that cannot be achieved in any other technology. Combining this stopping power with our proprietary software means that only a few individual photons are needed to pass through the weld to generate image data. And with zero dark noise, our detectors can operate for long periods of time maximising the chance of accumulating photon data with no negative impact on output quality.

Our unparalleled Dynamic range gives the user the ability to see all of an object in one exposure and presents more data for analysis. With frame rates of up to 2500 fps this occurs in as quick a time as possible. This capability presents solutions for large equipment weld examination and fast response weld integrity quality control.

Explore our GALLERY for examples of our image performance.


XCounter has a solid foundation in both integrating and photon counting state of the art X-ray detector technology.

The basic component in our detectors is a conversion material, which converts the X-rays into electrical signals, and a CMOS (ASIC) which transforms the electric signals into a datastream of either the integrated electric charge or the number of photons which has entered each pixel. This data is then used to create a digital image which is either two- or threedimensional, depending on the scan geometry.

Our solid state detector uses CdTe which is a direct conversion material. When an X-ray photon enters the material it is converted directly into an electric signal which is captured, measured and finally processed into an image. This provides significantly better Modulation Transfer Function (MTF) and Detection Quantum Efficiency (DQE) compared to scintillation detectors due to the high sensitivity and very good stopping power for high energy photons. By combining the CdTe conversion layer with our custom ASICs (CMOS) we can supply detectors that support integrating as well as photon counting modes, fast readout and low power consumption.