What is the purpose of calibration of dosimeters?

• A. To relate detector readings to known dose values and ensure accuracy.
• B. To determine the maximum energy of photons.
• C. To store dose information for late reading.
• D. To monitor environmental noise.

Answer: (A)

Calibration ties the dosimeter’s readings to a known dose value so the indicator reflects the actual radiation exposure. By using a reference radiation field, a calibration factor is established that makes measurements accurate and traceable to standards. This process also accounts for how the detector’s response changes with energy, geometry, and ambient conditions, ensuring the device gives trustworthy dose numbers over time. The other tasks—pinning down photon energy, storing dose data, or monitoring background noise—are separate concerns and not the primary aim of calibration.