?? What is Computed Radiography? ??

Computed Radiography (CR) is the digital evolution of traditional X-ray film radiography, delivering significant benefits for inspection tasks. Say goodbye to consumables and long processing times!

? Advantages of Computed Radiography:

• ?? Reusable Imaging Plates
• ?? No Darkroom or Chemicals Needed
• ?? Reduced Exposure & Processing Time
• ?? Software-based Evaluation & Reporting
• ?? Easy Digital Data Exchange & Archiving

?? With CR, more details are visible due to a higher dynamic range, making it superior to film. The simplified workflow, safer working conditions for operators, and eco-friendly, chemical-free process add even more value!

?? How Exactly Does Computed Radiography Work?

In Computed Radiography (CR), imaging plates are exposed to X-rays or gamma rays ??, and the incoming radiation's energy is stored in a special phosphor layer. Here’s how it works step-by-step:

1?? Exposure: When the plate is exposed, it captures the radiation energy.

2?? Laser Scanning ??: A specialized scanner uses a precisely focused laser beam to stimulate the plate and read the latent image.

3?? Blue Light Emission ??: When stimulated, the plate emits blue light proportional to the radiation level received.

4?? Detection ??: A highly sensitive photomultiplier tube (PMT) detects the emitted light and converts it to a digital signal via an analog-to-digital converter (ADC).

5?? Image Display ???: The digital X-ray image is displayed on a computer monitor for evaluation.

?? Reusability: After the image is read, a high-intensity light source erases the plate, making it ready for reuse—up to 1000 times or more, depending on the application!

?? What Should Be Considered When Choosing Computed Radiography (CR)?

When considering Computed Radiography (CR) ?? as a digital alternative to traditional X-ray film, it’s essential to know that imaging plates are compatible with the same inspection methods and techniques as film. Here’s what to keep in mind:

• ?? Image Quality Options: Imaging plates come in different system classes, impacting image quality and requiring varying exposure times.
• ?? Scanner Settings: Beyond plate type, scanner settings are crucial, especially the scanner’s resolution capability (basic spatial resolution or SRb), which heavily influences image clarity.

?? With these factors in mind, DüRR NDT developed the HD-CR 35 – the world's first scanner with an impressive 30 μm basic spatial resolution and a finely focused 12.5 μm laser (when used with high-resolution plates). This high performance is certified by the Federal Institute for Materials Research and Testing (BAM) ??.

?? Adaptability: The HD-CR 35 can be tailored for different inspection needs with its adjustable laser focus. For lower-resolution requirements, the CR 35 with a fixed 50 μm laser focus is also an excellent option!

?? Computed Radiography (CR) vs. Film Radiography

??Exposure Time

?? Computed Radiography Applications

??? Computed Radiography Products