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Non-destructive testing NDT

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Digital radiography in NDT covers the DR (Digital Radiography) and CR (Computed Radiography) techniques, in which X-ray or gamma radiation passes through the component and an image of the internal structure is recorded by a digital detector or imaging plate instead of classic film.

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Radiografia cyfrowa (DR)

At Ultrarent we use both CR (imaging plate) and DR (digital detector) systems, which reduces the time from exposure to a finished radiograph from several dozen minutes to practically instant on-screen preview, with no chemical film processing or darkroom required. DR technology provides very good resolution, a wide dynamic range and a better signal-to-noise ratio, while CR offers great geometric flexibility (e.g. for circumferential pipe welds and CUI), resulting in higher detectability of small discontinuities, more repeatable results, and easy image enlargement and processing during interpretation. Testing is carried out in accordance with EN ISO 17636-2, by inspectors certified to EN ISO 9712, level 2 and 3.

In practice this means:

an instant test result shortens the waiting time for results
digital archiving of radiographs makes it easy to share and transfer data, and enables remote analysis and expert consultation
lower radiation doses reduce risk
shorter exposure time increases testing efficiency on projects with tight schedules, as well as for castings
no chemical film processing, shorter testing time and faster accept/repair decisions
higher detectability of small discontinuities thanks to better contrast, a wider dynamic range and the possibility of digital image processing (contrast, filters, zoom)
DR radiography – the ideal solution for fast production inspections and automated lines, where high throughput and an instant preview matter
CR – a very good field and “bridging” option: imaging plates are flexible, work well for circumferential welds and corrosion mapping (tangential shots), while providing full digitisation of the process
Badania Radiograficzne (RT)

ULTRARENT Sp. z o.o. is a professional non-destructive testing (NDT) laboratory that provides testing and inspection services across the entire country — from Pomerania to the Subcarpathian region, and from Lower Silesia to Podlasie. Thanks to our wide operating reach and qualified team of specialists, we offer comprehensive service for both medium and large enterprises, as well as smaller industrial plants — in every voivodeship of Poland

List of voivodeships we serve:

Lower Silesian Kuyavian-Pomeranian Lesser Poland Masovian Opole Subcarpathian Podlaskie Pomeranian Łódź Lubusz Silesian Świętokrzyskie Greater Poland Kuyavian-Pomeranian Warmian-Masurian West Pomeranian

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Digital radiography (DR/CR) is a modern and highly effective NDT method, but – like classic radiography – it requires the organisation of safety zones and is not always optimal for every geometry or thickness.

Badania NDT

PAUT is an advanced NDT method using a multi-element ultrasonic probe that electronically steers the wave beam at various angles, enabling a volumetric assessment of welds and structural components.

Other methods:

Phased Array Ultrasonic Testing (PAUT) is an advanced NDT method in which a multi-element ultrasonic probe generates an electronically steered beam at multiple angles in a single scan, enabling a full volumetric assessment of welds, castings and structural components.

TOFD ultrasonic testing (Time of Flight Diffraction) is a highly precise, volumetric NDT technique used to detect and measure discontinuities in welded joints and steel components. The TOFD technique uses the diffraction of ultrasonic waves at the edges of discontinuities, enabling their detection and precise sizing.

Ultrasonic testing (UT) is an NDT method in which an ultrasonic wave is introduced into the tested component via a probe, and the reflected signals are analysed in order to detect internal and surface discontinuities.

Digital radiography, like the analogue technique, uses an X-ray (röntgen) or gamma (radioactive isotope) source to obtain an image of a material’s internal structure. The difference is that instead of radiographic film we use a digital panel (DR) or an imaging plate system with a scanner (CR) as the detector.

Digital CR/DR techniques offer fast availability of results and easier archiving compared with the film technique.

The most important benefits are: instant image preview, no chemical processing or darkroom, easy data storage and sharing, better inspection sensitivity (IQI), shorter exposure parameters, and the ability to re-analyse the same radiographs without loss of quality.

Radiography excellently detects volumetric discontinuities such as: gas pores, slag or tungsten inclusions, lack of penetration, as well as voids and other internal casting defects. Thanks to the very high resolution of digital systems we are able to detect longitudinal and transverse cracks. Digital radiography produces very high-resolution digital radiographs that can be freely processed using appropriate software.

With digital techniques, results are available almost immediately after the exposure is taken and the image is processed by the digital system – this usually takes no more than a few minutes.

In addition, digital testing allows the exposure time to be shortened by almost 10 times.

In practice this means a significantly shorter inspection cycle than with the film-based method.

Yes, the typical configuration requires placing the radiation source (X-ray tube or isotope) on one side of the object and the detector (panel or CR plate) on the opposite side.

Two-sided access is therefore standard. In the case of piping, access to the inside of the pipe is not required.

RT testing is carried out only by qualified personnel holding the appropriate certifications. Work involving ionising radiation requires designating a controlled zone, restricting access for unauthorised persons, and using personal protective equipment and dose monitoring. ULTRARENT ensures work is carried out in accordance with occupational health and safety and radiation protection regulations, minimising risk to personnel. In addition, the use of digital technique allows a significant reduction in radiation intensity by lowering the radiation parameters and shortening the exposure time.

Results are delivered electronically – JPG or PDF format together with a report containing the interpretation of the radiographs according to the required criteria. If necessary, we also provide raw files in DICONDE or TIFF format.

 

Digital archiving of radiographs makes it easy to share the results with the client and the supervising body, and enables long-term storage on data media or in the cloud.

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PAUT

Phased Array Ultrasonic Testing (PAUT)

TFM

Ultrasonic Testing Total Focusing Method (TFM)

VT

Visual testing (VT)

MT

Magnetic particle testing (MT)

RT

Radiographic testing (RT)

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  • Testing laboratory recognized by UDT — testing conducted in accordance with quality requirements for regulated equipment and critical processes
  • Less downtime and continuous operation — early detection reduces the risk of failure and costly shutdowns
  • Fast readiness and short turnaround times — efficient logistics, priority scheduling, express test results
  • Classic and advanced NDT inspection techniques performed by a team of specialists with years of experience
  • ISO 9712 Level 3 in all five principal NDT methods — VT, PT, MT, RT and UT. We write and approve the inspection procedure, not only perform the test.