Bombarded by neutrons, natural thulium becomes radioactive thulium-170 (128.6-day half-life), which ejects soft gamma radiation with wavelength commensurate with laboratory hard X-ray sources. Only one allotropic (structural) form is known for thulium.
Feb 29, 2024
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It is fairly soft and slowly tarnishes in air. Despite its high price and rarity, thulium is used as a dopant in solid-state lasers, and as the radiation source ...
All isotopes of thulium are either radioactive or, in the case of 169Tm, observationally stable, meaning that 169Tm is predicted to be radioactive but no ...
Nov 5, 2010 · A SMALL, inexpensive, and portable x-ray unit, developed by scientists at Argonne National Laboratory, provides rays which are comparable in ...
Radioactive Thulium-171 is a beta emitter with a half-life of two years and is potentially useful as an energy source. Natural thulium is used in ceramic ...
Radioactive isotope 170Tm is produced by bombarding thulium in a nuclear reactor. It has a half-life of 128 days and is used as a portable source of x-rays.
Sep 14, 2021 · Thulium-167 is a promising radionuclide for nuclear medicine applications with potential use for both diagnosis and therapy ...
When irradiated in a nuclear reactor, thulium produces an isotope that emits x-rays. ... thulium has atomic number 69. It's one of the rare earths, elements that ...
Thulium-doped calcium sulphate has been used in personal radiation dosimeters because it can register, by its fluorescence, especially low levels. Thulium in ...
This table gives information about some radiosotopes of thulium, their masses, their half-lives, their modes of decay, their nuclear spins, and their nuclear ...