INTRODUCTION

RTD Rayscan and Tankscan are Applus+ solutions for real-time digital radiographic (RTR) inspection used in radiography NDT, which uses advanced technology in direct radiography (DR) techniques. Real time digital radiography involves the filmless conversion of data into a high-resolution digital image of the entire weld and can be performed within a single scan. Rayscan is a RTR inspection that can be used as either double-wall single image (DWSI) or single-wall single image (SWSI) and can inspect pipes with a diameter range from 5cm to 142cm (2" to 56"), as well as horizontal and vertical tank weld seams.

THE Applus+ SOLUTION

Applus+ leads the field in advanced technology for RTR inspection, with its own R&D laboratories, worldwide resources and geographical coverage. The radiography NDT technicians at Applus+ work closely with industry leaders and subject experts.

The Rayscan and Tankscan RTR inspection technologies comply with the requirements of various industry standards (ASME, API, DNV, EN-ISO). Rayscan/Tankscan can minimise downtime and increase production, while providing higher sensitivity and better overall definition to identify and evaluate indications.

TARGET CUSTOMERS

The real-time digital radiography developed by Applus+ for Rayscan and Tankscan has been employed mainly in the new-construction industry, for example in:

  • Spool bases
  • Lay-down barges
  • Pipeline construction
  • LNG tank construction

 

Real time digital radiography provides significant advantages over conventional radiography, such as:

  • Rapid assessment of weld quality with no chemical processing
  • Smaller exclusion zones
  • Lower source-strength requirements
  • Remote viewing capabilities
  • Advanced software capabilities, such as measuring tools, zoom, window levelling, etc.
KEY CUSTOMER BENEFITS

The Rayscan/Tankscan Real Time Digital Radiography developed for RTR inspections has a number of benefits over conventional film radiography:

  • Cost efficient; no consumables
  • Quick cycle time
    • High scan speed
    • No development time
    • Direct interpretation and feedback
  • Quality equal to/better than film
  • Increased safety 
    • Reduced radiation required
    • Collimated X-ray beam
    • Shielded scanner design
  • Environmentally friendly; no chemical waste management required
  • High suitability for: 
    • Pipes with diameters of 5cm to 142cm (2” to 56”)
    • Thin walls
    • Austenitic materials
    • Dissimilar welds
    • CRA pipelines
    • Root and hot-pass inspections

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