A radioactive isotope of hydrogen having one proton and two neutrons in the nucleus. It decays spontaneously to Helium-3 by the emission of an electron (beta ray), with a half-life of 12.3 years. Symbol 1H3. Atomic weight 3.01605 (C-12 = 12.0000). It is one of the radioisotopes commonly used to label chemical compounds for use as tracers in biochemistry and chemistry. It is also used as one of the fusionable components of a hydrogen bomb.
The heaviest hydrogen isotope, containing one proton and two neutrons in the nucleus, produced most effectively by bombarding lithium-6 with neutrons. In a fission weapon, tritium produces excess neutrons, which set off additional reactions in the weapon's fissile material. In this way, tritium can either reduce the amount of fissile material required, or multiply (i.e., boost) the weapon's destructive power as much as five times. In fusion reactions, tritium and deuterium, another hydrogen isotope, bond at very high temperatures, releasing approximately 14 million electron-volts of energy per set of neutrons.
Radioactive hydrogen, which decays to produce nonradioactive helium plus beta radiation capable of producing silver grains in a radioactive emulsion.
A radioactive isotope of hydrogen with two neutrons and one proton in the nucleus. It is heavier than deuterium (heavy hydrogen). Tritium is used in industrial thickness gages, as a label in tracer experiments and in controlled fusion experiments.
A radioactive isotope of hydrogen (H-3)
A rare radioactive isotope of hydrogen with two neutrons and one proton in the nucleus (a mass of 3 atomic mass units).
A radioactive isotope of hydrogen having a mass of 3 units; it is produced in nuclear reactors by the action of neutrons on lithium nuclei. See; Fusion, Isotope, Thermonuclear.
A radioactive isotope of hydrogen whose nucleus contains one proton and two neutrons. WVDP: West Valley Demonstration Plant, the name of the vitrification plant for high-level radioactive wastes at West Valley, New York. yield: The energy released by a nuclear explosion. Looking for a word or term that's not here? Send an e-mail to glossary at ieer.org with the term(s) you would like to see added to the Glossary. Classroom Home Institute for Energy and Environmental Research Comments to ieer at ieer.org
Isotop of hydrogen, slightly radio-active, is used to activate the luminous dots on the dial. The emitted radiation is so low that there is no health risk.
A rare isotope of hydrogen with one proton and two neutrons.
An unstable isotope of hydrogen that contains two neutrons in addition to the usual single proton in the nucleus. It does not occur in significant amounts naturally but is human-made.
The heaviest form of hydrogen, containing one proton and two neutrons. Tritium is sometimes used in nuclear fusion, in conjunction with deuterium. It differs from the other two forms of hydrogen, protium and deuterium, by the number of neutrons it contains.
radioisotope of hydrogen with two neutrons and one proton in its nucleus.
The radioactive isotope of hydrogen.
Hydrogen isotope (q.v.) with relative atomic mass 3.
(chemical symbol H-3) a radioactive isotope of the element hydrogen (chemical symbol H). See also deuterium.
An isotope of hydrogen that is used to activate the luminous dots or indices on a watch dial. The radioactivity released in this process is too slight to pose a health risk.
An isotope of hydrogen used in the luminous compounds which give watch dials and hands their glow in the dark capabilities. Many watch dials will show a small T at the bottom, indicating the use of tritium. The half life of tritium is 12.5 years thus it will lose its ability to provide illumination as time passes. Now largely superceded by non-radioactive organic compounds such as the trade name Luminova.
Relatively rare Hydrogen isotope. The nuclei consists of 1 proton and 2 neutrons. Tritium is radioactive, and has half-life period of 12.3 years. Decays into a low energy beta particle with an average energy of 5.7 keV. Naturally there is only approx. 10kg of Tritium in the world. However Tritium can be artificially produced by bombarding Lithium nucleus with high energy protons.
Isotope of hydrogen used in nuclear bombs. (see also Deuterium)
A radioactive isotope of hydrogen containing one proton and two neutrons in the nucleus. If tritium occurs naturally, it is present in amounts smaller than one part in 1017 parts of ordinary hydrogen. Tritium is produced in CANDU Reactors, when a deuterium atom in the heavy water moderator captures a neutron. It is used commercially in self-illuminating signs and is under development as a fuel for nuclear fusion. However, at present, almost all tritium is produced via pile radiation of lithium and is used in the manufacture of the hydrogen bomb.
Tritium (symbol T or 3H) is a radioactive isotope of hydrogen. The nucleus of tritium (sometimes called triton) contains 1 proton and two neutrons, whereas the nucleus of protium (the most abundant hydrogen isotope) contains no neutrons. Its atomic weight is 3.0160492.
