How should the physicist indicate to the mammography facility that the air kerma measuring instrument has met the requirement?

The physicist should include the date of the last calibration in the annual physics survey report. The physicist must retain, in his or her records, the documentation (letter, certificate, report, etc.) from the calibration laboratory showing:

1. the date of the instrument’s calibration.
2. that the instrument met the required accuracy or if it did not, the correction factors that must be used to bring the measurements within the required accuracy.

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