Uses of mass spectrometry in radioactive dating online community dating site ru
For example, if a thyroid tumor were detected, a much larger infusion (thousands of rem, as opposed to a diagnostic dose of less than 40 rem) of iodine-131 could help destroy the tumor cells.
Similarly, radioactive strontium is used to not only detect but also ease the pain of bone cancers.
Radioactive isotopes have a variety of applications.
Generally, however, they are useful because either we can detect their radioactivity or we can use the energy they release.
Table 15.5 “Some Radioactive Isotopes with Medical Applications” lists several radioactive isotopes and their medical uses.
In addition to the direct application of radioactive isotopes to diseased tissue, the gamma ray emissions of some isotopes can be directed toward the tissue to be destroyed.
A is a substance that can be used to follow the pathway of that substance through some structure.The amount of radioactive iodine that collects there is directly related to the activity of the thyroid, allowing trained physicians to diagnose both hyperthyroidism and hypothyroidism.Iodine-131 has a half-life of only 8 d, so the potential for damage due to exposure is minimal.Very little radioactive material is needed in these diagnostic techniques because the radiation emitted is so easy to detect.