kiirgusaja
Kiirgusaja is an Estonian term that refers to the duration of radiation emission or the period during which a location or object is exposed to radiation. In practical use, kiirgusaja often denotes the exposure time in radiographic imaging, radiotherapy, or other situations where a radiation source is active for a defined interval. The unit is typically seconds or fractions thereof.
The concept is closely linked to dose, which measures the energy deposited in matter per unit mass.
Measurement and sources of exposure vary by context. In medical imaging and therapy, kiirgusaja is chosen to
Safety and regulation emphasize controlling kiirgusaja as part of dose optimization and protective measures. Workers and
Distinguishing kiirgusaja from related concepts is important: half-life describes how quickly a source’s activity decreases over