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Scintigraphy (from Latin scintilla, "spark"), also known as a gamma scan, is a diagnostic test in nuclear medicine, where radioisotopes attached to drugs that travel to a specific organ or tissue (radiopharmaceuticals) are taken internally and the emitted gamma radiation is captured by gamma cameras, which are external detectors that form two-dimensional images [1] in a process similar to the ...
Thallium-202 (half-life 12.23 days) can be made in a cyclotron [4] while thallium-204 (half-life 3.78 years) is made by the neutron activation of stable thallium in a nuclear reactor. [ 5 ] In the fully ionized state, the isotope 205 Tl 81+ becomes beta-radioactive, undergoing bound-state β − decay to 205 Pb 81+ with a half-life of 291 +33
The power of prognosis from a myocardial perfusion scan is excellent and has been well tested, and this is "perhaps the area of nuclear cardiology where the evidence is most strong". [ 13 ] [ 16 ] Many radionuclides used for myocardial perfusion imaging, including rubidium-82 , technetium-99m and thallium-201 have similar typical effective ...
Thallium(I) superoxide or thallium dioxide TlO 2; Tl 4 O 3 This page was last edited on 27 February ...
Thallium(I) oxide is the inorganic compound of thallium and oxygen with the formula Tl 2 O in which thallium is in its +1 oxidation state. It is black and produces a basic yellow solution of thallium(I) hydroxide (TlOH) when dissolved in water. It is formed by heating solid TlOH or Tl 2 CO 3 in the absence of air.
The chemical reactivity of the Tl–C bond is also the lowest in the group, especially for ionic compounds of the type R 2 TlX. Thallium forms the stable [Tl(CH 3) 2] + ion in aqueous solution; like the isoelectronic Hg(CH 3) 2 and [Pb(CH 3) 2] 2+, it is linear. Trimethylthallium and triethylthallium are, like the corresponding gallium and ...
Prussian blue, also known as potassium ferric hexacyanoferrate, is used as a medication to treat thallium poisoning or radioactive caesium poisoning. [1] [2] For thallium it may be used in addition to gastric lavage, activated charcoal, forced diuresis, and hemodialysis. [3] [4] It is given by mouth or nasogastric tube.
Tl 2 O 3 is metallic with high conductivity and is a degenerate n-type semiconductor which may have potential use in solar cells. [5] A method of producing Tl 2 O 3 by MOCVD is known. [6] Any practical use of thallium(III) oxide will always have to take account of thallium's poisonous nature. Contact with moisture and acids may form poisonous ...