Perks of Digital Radiography

Posted on 24/04/2024

Traditional analog procedures that involve chemicals are linked to unpleasant odors and risks to worker health. The space, time, and financial costs of typical x-ray archives are substantial. An excellent and environmentally sustainable alternative is digital radiography. Another benefit of digital radiography over traditional radiography is that patients are exposed to less radiation. Image production and presentation processes are different between digital and analog imaging systems. But much like regular photos, digital X-ray images are governed by the same physical laws. Digital photos are seen using a PC and display monitor rather than photographic film and a lightbox.Therefore, the switch to digital radiography simply necessitates minimal adjustments to current operations. Treatment of patients is unaffected.

An instantaneous digital radiographic image is created using digital radiography (DR), an enhanced method of x-ray inspection. With this method, data is recorded while an object is being examined using x-ray sensitive plates, and it is then instantly transferred to a computer without the necessity of a middle cassette. Through the use of a detector sensor, the incident x-ray radiation is transformed into an equivalent electric charge and ultimately into a digital image.

Digital detector arrays (DDAs), commonly referred to as flat panel detectors, produce high-quality digital images in comparison to conventional imaging systems. They may offer a higher sensitivity for radiography applications due to their greater dynamic range and higher signal-to-noise ratio.

What are the benefits of Digital Radiography?

The non-destructive testing sector can benefit from digital radiography in a number of ways, including:

  • Shorter exposure times
  • Real-time software
  • Software for flaw detection and analysis
  • Enhanced capacity to discern details
  • Enhanced linearity and SNR
  • Reduced inspection time because film doesn't need to be chemically processed
  • Eliminates chemical processing, making it environmentally safe
  • Digital data storage and image enhancement
  • Increased productivity
  • Portability
  • Multiple thicknesses may be evaluated in one shot thanks to an increase in dynamic range.
  • Instant feedback Electronically transferable to customers

What distinguishes digital radiography from computed radiography?

Active matrix flat panels or linear detector arrays, which are used in digital radiography systems, are composed of a detecting layer coated over an active matrix array of thin film transistors and photodiodes. Real-time conversion of radiography images to digital data makes them instantly available for analysis.

Computed radiography cassettes take X-ray images using photo-stimulated luminescence screens rather than conventional x-ray film. The computed radiography cassette is placed into a reader, which creates a digital image from the stored data. Imaging plates for computed radiography are flexible and do not need a rigid holder. There are flexible cassettes that can be used to accommodate the detector into curved spaces.

Conclusion

While digital radiography and computed radiography both offer a larger dosage range and the ability to remove noise through post-processing, DR has many advantages over CT. By instantly creating images of higher quality and offering computed radiography up to three times more dosage efficiency, digital radiography enhances throughput. With continued technology developments and price reductions, digital radiography is quickly replacing traditional radiography as the method of choice for non-destructive testing practitioners.