The calibration interval for the AN/VDR-2 Radiac Set, the AN/PDR-75 Set, and the AN/PDR-14 Radiac Set is:

The calibration interval for the AN/VDR-2 Radiac Set, the AN/PDR-75 Set, and the AN/PDR-14 Radiac Set is:

• A. 6 months
• B. 1 year
• C. 2 years
• D. 3 years

Answer: (C)

Maintaining accuracy in dosimetry instruments hinges on regular calibration to catch drift and verify response across the measurement range. For these radiac/dosimetry sets, the standard calibration interval is two years. This cadence follows manufacturer guidance and military practice to recheck energy response, linearity, and zero/background settings, keeping readings within specified tolerances despite aging components and field exposure. Calibrating more often, like every six months or yearly, adds maintenance burden with limited extra benefit, while extending beyond two years raises the risk that drift could push measurements outside acceptable limits. Sticking to a two-year interval helps ensure reliable dose assessment and safety in operations.

Maintaining accuracy in dosimetry instruments hinges on regular calibration to catch drift and verify response across the measurement range. For these radiac/dosimetry sets, the standard calibration interval is two years. This cadence follows manufacturer guidance and military practice to recheck energy response, linearity, and zero/background settings, keeping readings within specified tolerances despite aging components and field exposure. Calibrating more often, like every six months or yearly, adds maintenance burden with limited extra benefit, while extending beyond two years raises the risk that drift could push measurements outside acceptable limits. Sticking to a two-year interval helps ensure reliable dose assessment and safety in operations.