What is the isotope technetium-99 used for?
Technetium-99m (99mTc) is a radionuclide nuclear agent that is FDA approved for diagnostic imaging of the brain, bone, lungs, kidneys, thyroid, heart, gall bladder, liver, spleen, bone marrow, salivary and lachrymal glands, blood pool, and sentinel nodes.
What is the daughter isotope of technetium-99?
Tc-99m is the daughter or decay product of radioisotope molybdenum-99 (Mo-99). Mo-99 does not exist in nature, and is produced by bombarding enriched uranium targets with neutrons in a nuclear reactor.
How is technetium-99m generated?
Technetium -99m is produced by bombarding molybdenum 98Mo with neutrons. The resultant 99Mo decays with a half-life of 66 hours to the metastable state of Tc . The dominant decay mode gives the useful gamma ray at 140.5 keV.
What type of emitter is technetium-99m?
These radionuclides all emit gamma rays, and a scintillation camera is used to detect gamma-ray emission. The data are assessed with the R wave… …used for imaging purposes is technetium-99m, a gamma-ray emitter with a six-hour half-life, which diffuses throughout the tissues of the body after its administration.
What is the difference between TC 99 and Tc-99m?
Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions. Technetium-99m is a short-lived form of Tc-99 that is used as a medical diagnostic tool. It has a short half-life (6 hours) and does not remain in the body or the environment for long.
What is element 43 on the periodic table?
Technetium
Technetium – Element information, properties and uses | Periodic Table.
How many protons does Tc 96 have?
43 protons
Technetium (Tc) has atomic number, Z= 43, which means that all of its atoms have 43 protons in their nuclei.
Is technetium 99m a radiopharmaceutical?
Technetium-99m (99mTc) is a synthetic radioisotope that is used worldwide to produce radiopharmaceuticals that are mainly used for diagnostic purposes in nuclear medicines. The purity of the final radiopharmaceutical (99mTc-R) can be confirmed by applying chromatographic methods.
When was 99m discovered?
1938
Technetium-99m was actually discovered in 1938 by Emilio Segrè. After a visit to Ernest O. Lawrence’s Berkeley Radiation Laboratory, Segrè was sent a molybdenum strip from the laboratory’s cyclotron deflector in 1937 that was emitting anomalous forms of radioactivity.
How is technetium-99m eliminated from the body?
Technetium-99 can pose a health risk when it enters the body. Once in the human body, Tc-99 concentrates in the thyroid gland and the gastrointestinal tract. However, the body constantly gets rid of Tc-99 in feces. The Tc-99m used in medical diagnostics has a short, six-hour half-life and does not remain in the body.
What is the atomic number of technetium?
The atomic number of the element Technetium is 43
What is the atomic structure of technetium?
Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. The chemical symbol for Technetium is Tc. Technetium is the lightest element whose isotopes are all radioactive; none are stable.
What element is technetium?
Technetium is a metallic chemical element which does not appear naturally, because it has no stable isotope. It bears the distinction of being the first synthetically produced element, after a great deal of experimentation by scientists who predicted its presence on the basis of the order of the periodic table of elements.