Radiation-Emitting Products

What is considered adequate weekly phantom QC monitoring for a facility that has multiple processors and multiple units?

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The answer depends on whether the x-ray units and processors are used interchangeably, whether the processors are matched (established operating levels for mid density and density difference for all processors are within 0.05 optical density), and whether each processor is operating within its own pre-established action limits.

If the processors are not matched and the facility is processing clinical films from its multiple x-ray units interchangeably through its processors, the facility must conduct the weekly phantom image test for each x-ray unit-processor combination. In this example, if a facility has 5 x-ray units and 2 processors, a total of 10 phantom images must be performed each week.

If the processors are matched and the facility is processing clinical films from its multiple x-ray units interchangeably through its processors, it is acceptable to produce a weekly phantom image from all x-ray units and process them through any processor, as long as each processor is tested with a phantom image at least once each week of use. (Note: in this scenario each processor must be operating within its own pre-established action limits). This will reduce the number of phantom images that must be performed. In this example, if a facility has 5 x-ray units and 2 processors, a total of 5 phantom images must be performed each week. Note: At least 1 phantom image must be processed through each processor.

Back to Phantom Image - Weekly Equipment Quality Control Tests

Page Last Updated: 08/12/2014
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