The kinetics of radioactive decay and radiometric dating
This “tagged” compound, or radiotracer, is then put into the patient (injected via IV or breathed in as a gas), and how it is used by the tissue reveals how that organ or other area of the body functions.Figure \(\Page Index\): A PET scanner (a) uses radiation to provide an image of how part of a patient’s body functions.PET Scan Positron emission tomography (PET) scans use radiation to diagnose and track health conditions and monitor medical treatments by revealing how parts of a patient’s body function (Figure \(\Page Index\)).To perform a PET scan, a positron-emitting radioisotope is produced in a cyclotron and then attached to a substance that is used by the part of the body being investigated.
Among them were Marie Curie (the first woman to win a Nobel Prize, and the only person to win two Nobel Prizes in different sciences—chemistry and physics), who was the first to coin the term “radioactivity,” and Ernest Rutherford (of gold foil experiment fame), who investigated and named three of the most common types of radiation.
We classify different types of radioactive decay by the radiation produced.
Figure \(\Page Index\): Alpha particles, which are attracted to the negative plate and deflected by a relatively small amount, must be positively charged and relatively massive.
The n:p ratio increases, and the daughter nuclide lies closer to the band of stability than did the parent nuclide.
occurs when one of the inner electrons in an atom is captured by the atom’s nucleus.