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(trĭt`ēəm), radioactive isotope of hydrogenhydrogen
[Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14°C;; b.p. −252.87°C;; density 0.08988 grams per liter at STP; valence usually +1.
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 with mass number 3. The tritium nucleus, called a triton, contains one proton and two neutrons. It has a half-life of 12.5 years and decays by beta-particle emission. The symbol is T or 3H. It is one form of heavy hydrogen, the other being deuterium. It is usually produced in nuclear reactors as a byproduct of the irradiation of lithium. Its current major use is to increase the yield of thermonuclear devices. The U.S. Department of Energy has a production reactor in Savannah, Georgia for this purpose. In the future, vast amounts of tritium will fuel experiments in fusion research. Canada, Europe and Japan have extensive programs underway to develop physics-based, as opposed to mechanical based, production procedures to generate the volumes necessary to proceed with these experiments.



(T, or 3H), a radioactive isotope of hydrogen with mass number 3 (hence its name, from the Greek tritos, “third”).

Tritium was discovered in 1934 by the British scientists E. Rutherford, M. L. Oliphant, and P. Harteck. The tritium nucleus consists of one proton and two neutrons. Tritium is β-active, with a half-life of 12.26 yr. In nature, it is formed in in-significant quantities by the action of the neutrons of cosmic rays on nitrogen atoms (147N + n = 31T + 126C) and in nuclear transformations induced by high-energy cosmic particles. The mean content of tritium in natural waters is one atom per 1018 atoms of !H.

Tritium is obtained in nuclear reactors by irradiation of 63Li with neutrons (63Li + n = 31T + 42He). It is used as the most important component in thermonuclear synthesis reactions, as a fuel in thermonuclear bombs, and in chemical, biological, and hydrological studies.


Evans, E. A. Tritii i ego soedineniia. Moscow, 1970. (Translated from English.)


(nuclear physics)
The hydrogen isotope having mass number 3; it is one form of heavy hydrogen, the other being deuterium. Symbolized 3H; T.


a radioactive isotope of hydrogen, occurring in trace amounts in natural hydrogen and produced in a nuclear reactor. Tritiated compounds are used as tracers. Symbol: T or 3H; half-life: 12.5 years
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For its winning strategy of superior product development in controls and user interface, enabling integrators, OEMs and resellers to offer an open approach for control solutions and expanding its vision of interoperability to new frontiers, Tridium is a worthy recipient of the 2009 Frost & Sullivan Enabling Technology of the Year Award in the North American BAS market.
Tridium platforms allow users to build and manage complex monitoring, control, and automation solutions, including applications for energy management, telecommunications, M2M and smart services building control, facility management, industrial automation, medical equipment and physical security.
QA Graphics provided custom floor plan graphics and custom 3D system graphics, which Everest has implemented within the Tridium NiagaraAX Framework.
At Tridium, we feel it is important to recognize those who work together and deliver innovation on the Niagara platform.
ESI is providing building integration and analytics engineering services, including the SkySpark[TM] analytics platform from SkyFoundry and the Niagara Framework[R] platform from Tridium.
Sponsors of TIA 2012: Inside the Network include Alcatel-Lucent (Host Sponsor), ADTRAN, AT&T, Cisco, GENBAND, Ericsson, ILS Technology, Infinera, Juniper Networks, McAfee, Nokia Siemens Networks, Panasonic, Polycom, Sumitomo Electric Lightwave, Tata Consultancy Services, TE Connectivity, Tridium, Verizon and Walker and Associates.
County currently has the following building automation systems in use at various facilities: Alerton Envision, Alerton Compass, Invensys Tridium Niagra, SmartStruxure, StruxureWare, Automated Logic, System 8000, Metasys, and WattMaster.
Additional information about Tridium is available at www.
As a fellow Niagara Developer and Tridium Partner, Gline Net has the expertise and knowledge to ensure end users receive the best control solution for their building.
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Mercury Security Corporation, a leader in open platforms for access control and Tridium, the leader in open platforms for device to enterprise integration and building automation today announced a technology partnership to integrate their respective platforms.
QA Graphics partnered with Tridium in Spring of 2012, to develop a custom graphic library exclusively for Tridium's latest update to its core software, NiagaraAX Framework[R] 3.