Technécium99m
Technécium-99m, also known as technetium-99m, is a radioactive isotope of technetium with a half-life of approximately 6.01 hours. It is widely used in nuclear medicine for diagnostic imaging due to its favorable nuclear properties. Technetium-99m is produced through the fission of uranium-235 in a nuclear reactor, and it decays by emitting beta particles and gamma rays. The most common gamma ray emitted has an energy of 140 keV, which is used for imaging purposes.
The isotope is typically generated in a medical cyclotron or a nuclear reactor and is then purified
Technetium-99m is considered a low-energy beta emitter, making it relatively safe for internal use. However, it
The production and use of technetium-99m are regulated by various international and national organizations to ensure