What does RADIAC stand for?

• A. Radiation Analysis, Detection, Indication, Calculation
• B. Radiation Diagnostic, Indication, Calculation
• C. Radiation Detection, Indication, Computation
• D. Radioactive Detection, Indication, Computation

Answer: (C)

RADIAC describes what a radiation-detecting instrument does: it detects, indicates, and computes. The device is designed to first detect the presence and level of radiation, then provide an indication or readable readout for the operator, and finally perform computations to convert the detected signals into meaningful measurements like dose rate or total dose. This three-part flow—detection, indication, computation—is what the acronym conveys. The phrasing Radiation Detection, Indication, Computation matches the standard terminology for these instruments, whereas other wordings replace words (like Radioactive for Radiation, Diagnostic or Analysis for Detection, or Calculation for Computation) and don’t align with the conventional name used for these devices.