DÜRR NDT expands its portfolio of advanced solutions for industrial radiography with the launch of the D-DR 2430 NDT, a medium-sized digital X-ray detector specifically designed to enhance performance in inspections with gamma sources. Its addition strengthens the company’s technological offering in nondestructive testing (NDT) applications, where robustness, radiographic sensitivity, and portability are critical to ensuring reliable field results.
Optimization for gamma radiation: The advantage of the GOS Plus Scintillator
At the heart of the new detector is its gadolinium oxysulfide (GOS) Plus scintillator, a conversion material developed to maximize sensitivity in high-energy radiation scenarios. This design increases the scintillator thickness compared to traditional GOS variants, significantly improving gamma-ray absorption efficiency.
This feature makes the D-DR 2430 NDT ideal for applications dominated by isotopes such as Ir-192 or Co-60, maintaining high image sharpness even under low-intensity conditions or complex geometries.
Resolution and performance: Precise imaging for welds and pipe profiles
With a pixel size of 76 µm, the detector achieves a basic spatial resolution (SRb) of 130 µm, enabling images with the level of detail required for inspections of critical welds, pipe joints, and detailed geometric analyses.
This performance positions it as a high-value tool for inspections in refineries, petrochemical plants, hydrocarbon transport systems, and plant operations demanding precise diagnostics and high result repeatability.
Robustness for real-world field conditions
The D-DR 2430 NDT is designed to operate under harsh conditions. It features IP67 certification, ensuring resistance to dust and water, and has passed drop tests from 1 meter, demonstrating its ability to withstand impacts and frequent handling in industrial environments.
A notable element is its internal radiation shielding, which protects the detector’s electronic components and helps extend its service life, especially during repeated inspections with gamma sources.
Operational flexibility: Wireless or wired according to need
The device can operate wirelessly via a rechargeable battery and Wi-Fi connection, or in wired mode via Gigabit Ethernet, providing versatility to adapt to different work configurations.
Its integrated indicators for Wi-Fi, LAN, battery, and sensor status allow operators to monitor the system in real-time, reducing uncertainties during radiographic acquisitions.
D-Tect X Software: Intelligence applied to radiographic inspection
As part of DÜRR NDT’s digital ecosystem, the D-DR 2430 NDT uses D-Tect X software, recognized in the industry for its efficiency in image processing and analysis. Its advanced functions include:
- X-Filter, an algorithm that quickly optimizes images and enhances the visibility of fine details.
- Optional wall thickness tool, useful for evaluating pipe profiles and generating automatic reports exportable to Excel.
These capabilities speed up evaluation times, reduce errors, and provide greater precision in radiographic analyses.
Technical description of the equipment
The image shows the operational interface of the D-Tect X software, used in conjunction with the D-DR 2430 NDT digital detector for industrial radiographic inspection. The screen displays an X-ray of a curved pipe, where the system performs automatic wall thickness measurements (Wall Thickness – Single Point) at various points along the profile. Each measurement is marked with color-coded annotations indicating typical values such as 1.9 ± 0.3 mm, 2.0 ± 0.3 mm, or 2.4 ± 0.3 mm, demonstrating the detector’s high spatial resolution and metrological accuracy.
In the upper left of the image, the software displays essential calibration parameters for the evaluation, such as calibration length (Calibration Length: 90 mm) and pipe diameter (Pipe Diameter: 90 mm). These references allow correct geometric calculations and ensure accurate interpretation of the inspection.
On the right, the software tool panel is visible, including functionalities for annotation, calibration, measurement, analysis, and image quality control (SRb, SNR, CNR). Notably, the selected Wall Thickness (Single Point) function is designed for rapid thickness measurements on the inner or outer lines of the inspected component.
The lower right shows the histogram associated with the image, allowing evaluation of tonal distribution and adjustment of display parameters (Window Width and Window Level) to optimize X-ray sharpness and contrast.
Together, the image demonstrates how the D-DR 2430 NDT detector, with its high sensitivity to gamma sources and 76 µm resolution, works integrally with D-Tect X software to perform advanced pipe profile analyses, ensuring precision, traceability, and efficiency in NDT inspections.
Practical application: Thickness and geometry analysis with D-Tect X
The integration between the detector and D-Tect X is clearly evident in geometric analysis applications, such as measuring thickness in curved pipes. The image shows how the software allows users to:
- Visualize the internal and external profile of the elbow with high contrast,
- Perform point thickness measurements with ±0.3–0.4 mm precision,
- Overlay geometric calibrations such as reference length or pipe diameter,
- Analyze radiographic histograms to optimize dynamic range,
- Use annotation and tracing tools to document each evaluated point.
This representation demonstrates the system’s capability to provide reliable wall thickness readings, even in areas with complex geometry, enabling fast and consistent field diagnostics.
A new standard in gamma radiography
With the D-DR 2430 NDT, DÜRR NDT sets a new benchmark for high-resolution gamma radiography. Its combination of radiographic sensitivity, physical durability, operational flexibility, and advanced digital tools makes it a comprehensive solution for inspection teams requiring reliable performance in both field and laboratory environments.
This article was developed by DÜRR NDT and published as part of the seventh edition of Inspenet Brief February 2026, dedicated to technical content in the energy and industrial sector.