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Tritium (from Ancient Greek τρίτος (trítos) 'third') or hydrogen-3 (symbol T or 3 H) is a rare and radioactive isotope of hydrogen with a half-life of ~12.3 years. The tritium nucleus (t, sometimes called a triton) contains one proton and two neutrons, whereas the nucleus of the common isotope hydrogen-1 (protium) contains one proton and no neutrons, and that of non-radioactive hydrogen ...
However, GTLS devices do emit low levels of X-rays due to bremsstrahlung. [9] According to a report by the OECD, [10] any external radiation from a gaseous tritium light device is solely due to bremsstrahlung, usually in the range of 8–14 keV. The bremsstrahlung dose rate cannot be calculated from the properties of tritium alone, as the dose ...
Tritium is a low-energy beta emitter commonly used as a radiotracer in research and in traser [check spelling] self-powered lightings. The half-life of tritium is 12.3 years. The electrons from beta emission from tritium are so low in energy (average decay energy 5.7 keV) that a Geiger counter cannot be used to detect them. An advantage of the ...
The latest generation of radioluminescent materials is based on tritium, a radioactive isotope of hydrogen with half-life of 12.32 years that emits very low-energy beta radiation. It is used on wristwatch faces, gun sights, and emergency exit signs. The tritium gas is contained in a small glass tube, coated with a phosphor on the inside.
In 1986, the International Commission on Radiation Protection concluded that exposing a fetus to ionizing radiation, the kind that tritium emits, has a “damaging effect…upon the development of ...
This page lists radioactive nuclides by their half-life.
A banana contains naturally occurring radioactive material in the form of potassium-40.. Banana equivalent dose (BED) is an informal unit of measurement of ionizing radiation exposure, intended as a general educational example to compare a dose of radioactivity to the dose one is exposed to by eating one average-sized banana.
Tritium as it is used in these applications is considered safer than radium, [50] as it emits very low-energy beta radiation [51] (even lower-energy than the beta radiation emitted by promethium) [52] which cannot penetrate the skin, [53] unlike the gamma radiation emitted by radium isotopes. [50] A zeppelin altimeter from World War I.