How many rems are approximately equivalent to one Roentgen per hour?

The correct approximation for how many rems are equivalent to one Roentgen per hour is one rem per hour. This relationship is based on established standards in radiation measurement.

Roentgen (R) measures the amount of ionizing radiation that produces a certain amount of ionization in air and is commonly used for X-rays and gamma radiation. The unit of rem is used to quantify the biological effect of that radiation on human tissue, taking into account the type of radiation and its potential risk to health.

Under typical conditions, one Roentgen of X-ray or gamma radiation is understood to produce approximately one rem of dose equivalent in tissue. This direct correlation is why one rem per hour is considered appropriate for one Roentgen per hour in many clinical and safety contexts, adhering to the assumption that the radiation has similar biological effects.

This relationship simplifies the calculation for radiation exposure and allows healthcare professionals and safety officers to assess and communicate risks effectively, emphasizing the importance of understanding these units in radiation safety practices.