What is the exposure received by each individual in one hour at a constant radiation level of 40 mR/h for four persons?

To determine the exposure received by each individual in one hour at a constant radiation level of 40 mR/h, it's essential to understand how radiation exposure is quantified. The exposure rate of 40 mR/h signifies that each individual is exposed to 40 milliroentgens every hour.

Since the radiation level is constant and applies equally to all individuals, the exposure each individual would receive in that one-hour period is simply the radiation rate multiplied by the time of exposure. In this case, if one person is exposed for one hour at 40 mR/h, they would receive an exposure of 40 mR.

This situation does not change based on the number of individuals; each person’s exposure is independent of the others as long as they are in the same radiation field. Therefore, each of the four persons would also receive 40 mR of exposure in that hour, which aligns perfectly with the provided radiation level of 40 mR/h. This demonstrates the basic principle of radiation exposure where the individual’s exposure is a function of time and the exposure rate, not the number of people present.

In summary, an individual exposed to a radiation level of 40 mR/h for one hour will receive an exposure of 40 mR,