For x-ray and gamma ray photons with energies up to 3 million electron volts (MeV),which of the following quantities may be defined as the measure of the total electrical charge of one sign,either all pluses or all minuses,per unit mass that these two kinds of radiation generate in air only?

Question

Quizplus · Accepted Answer

The quantity that measures the total electrical charge generated in air by x-ray and gamma ray photons is the exposure. It is defined as the total electrical charge of one sign per unit mass of air, and is measured in units of coulombs per kilogram (C/kg). The absorbed dose (A) is a measure of the amount of energy deposited in a unit mass of tissue, and is measured in units of gray (Gy). The equivalent dose (B) includes a weighting factor to account for the different types of radiation and their potential biological effects, and is measured in units of sievert (Sv). The collective effective dose (D) is a population-based measure of radiation exposure, and is the sum of the equivalent doses received by all individuals in a population.

For X-Ray and Gamma Ray Photons with Energies Up to 3