RTR

Real-Time Radiography

In an attempt to address some of the costly limitations of RT (relatively low number of test locations per inspection day), some NDT vendors have created a hybrid technique – initial scanning with RTR identifying areas of interest with follow up RT at these selected locations.

RTR can be an effective pre-screening tool for RT, as long as the equipment positioning difficulties and limited scanning area of RTR do not prevent comprehensive inspection. Once RT locations are determined using RTR, the same benefits and limitations of RT techniques apply. This approach results in fewer locations receiving RT application.

When determining the best method for your industry and company requirements, there are many factors that should be evaluated. Below is a high-level baseline that is a great place to start, including standard requirements and (RTR) Real-Time Radiography’s ability to meet these requirements.

REQUIREMENT RESULT
Safety
I need daily operations to continue uninterrupted during facility inspection.

Radiation exposure possible, barriers and operations break may be required.

Meets need with exception
Preparation
I do not have/do not want to commit resources to prepare pipes for inspection.

No insulation removal or surface prep required with RTR.

Meets need
Data
I need accurate information about the state of tested pipe and indications of threat.

Can identify water or ice in insulation and presence of corrosion. Moderate detail. Cannot measure pipe wall thickness or schedule, view of outside diameter (OD) of pipe only.

Meets need with exception
Scope
I need all piping and vessels in my facility or designated inspection area tested.

RTR cannot interrogate all piping

Technicians can test up to 50 locations per day with RTR.

Does not meet need
Timeliness
I need vulnerabilities in my system identified quickly.

Post-inspection results only. Used as a preview for determining areas to evaluate further.

Does not meet need

For more information about other NDE/NDE methods for pipe inspection click a technology below:

VISUAL Ultrasonic Thickness PULSED EDDY CURRENT CONVENTIONAL RADIOGRAPHY RADIOMETRIC PROFILING

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