b. Suppose a person absorbed 50 mrad of alpha radiation. What would be the equivalent dose in millisieverts?

A typical chest X ray exposes a patient to an effective dose of 0.02 mSv. How many rem is this, and how many chest X rays would a patient have to receive before biological effects would be observed? (The limit from Table 11.6 is >25 rem.)

Match each property (1 to 3) with its unit of measurement. 1. activity2. absorbed dose3. biological damagea. rad

Two technicians in a nuclear laboratory were accidentally exposed to radiation. If one was exposed to 8 mGy and the other to 5 rad, which technician received more radiation?

Two samples of a radioisotope were spilled in a nuclear laboratory. The activity of one sample was 8 kBq and the other 15mCi. Which sample produced the higher amount ofradiation?

a. The dosage of technetium-99m for a lung scan is 20. µCi/kg of body mass. How many millicuries of technetium-99m should be given to a 50.0-kg person (1 mCi = 1000 µCi)

Why are rems the preferred units for measuring the health effects of radiation?

A selenium-75 source is producing 300 rem at a distance of 2.0 m?b. What is its intensity at 25 m?

If a radiation source has an intensity of 650 rem at 1.0 m, what distance is needed to decrease the intensity of exposure to below 25 rem, the level at which no effects are detectable?