A patient absorbs a 37-rad dose of \alpha-particles (RBE = 19) directly on a tumor. If protons were used instead (RBE = 10), how many rad would be needed to cause the same damage?
rad
If an 84 kg person is exposed to 42 mrem of alpha particles (with RBE of 15), calculate the dosage (in rad) received by the person.
rad
What is the amount of energy absorbed by the person (in J)?
J
When Po decays, the product is Pb. The half-life of this decay process is 1.78 ms. If the initial sample contains $4.4 \times 10^{17}$ parent nuclei, how many are remaining after 28 ms have
elapsed?
nuclei
What kind of decay process is this (alpha, beta, or gamma)?
alpha
beta
gamma
