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tritium
tritium , radioactive isotope of hydrogen 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 3 H. It is one form of heavy hydrogen, the other being deuterium. It... Read more |
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tritium clock
... Read more |
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cold fusion
cold fusion or low-temperature fusion, nuclear fusion of deuterium, an isotope of hydrogen , at or relatively near room temperature. Fusion, the reaction involved in the release of the destructive energy of a hydrogen bomb , requires extremely high temperatures, and investigations of fusion... Read more |
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plasma
plasma in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion ). It is electrically conductive and is affected by magnetic fields. The study of plasma, called plasma physics, is especially important in research... Read more |
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fusion, nuclear
...main methods have been employed. In the first, a plasma of tritium and deuterium is raised to a temperature above 100 million...method is laser fusion, in which a laser implodes a pellet of tritium and deuterium. At present, both methods fail to produce more... |
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tracers and groundwater
...flow velocities exceeding many kilometres per day. At the other extreme of flow velocities, radioactive isotopes such as tritium (3H) and chlorine-36 (36Cl), which were introduced to the hydrological cycle through nuclear weapons fallout, have... |
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isotope
...isotopes, some of which are radioactive (radioisotopes). Hydrogen, for example, has two isotopes, deuterium and the radioactive tritium. Radioisotopes are used in medicine, research and industry. Radioactive dating also uses isotopes. |
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tritium clock
tritium clock Tritium (T) is a naturally occurring radioactive isotope (3H) of hydrogen...to measure the age of water samples back to approximately 30 years. Tritium is produced in the upper atmosphere by the interaction of fast cosmic... |
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tritium
trit·i·um / ˈtritēəm; ˈtrish-/ • n. Chem. a radioactive isotope of hydrogen with a mass approximately three times that of the common protium isotope. (Symbol: T) |
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T
...comb.] (in units of measurement) tera- (1012): 12 Tbytes of data storage. ∎ tesla. ∎ Brit. (in names of sports clubs) Town: Mansfield T. • symb. ∎ temperature. ∎ Chem. the hydrogen isotope tritium. |
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tracer
...cannot be observed directly. Typical tracers include fluorescent dyes and salt. The presence of radioactive isotopes (e.g. tritium and carbon-14) may also be used as tracers in that they allow the age of groundwater to be determined. The presence of... |
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isotope hydrology
isotope hydrology The use of naturally occurring and introduced isotopes to date and identify water bodies. Among the most commonly used isotopes are tritium, deuterium, carbon-13, carbon-14, chlorine-36, and oxygen-18. |
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isotopes
...Thus, hydrogen has three isotopes, of atomic masses 1, 2, and 3, generally written as 1H, 2H (deuterium), and 3H (tritium). 1H is the most abundant isotope of hydrogen; 2H is stable, while 3H is radioactive. Radioactive isotopes are unstable... |
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isotope
...example, hydrogen exists in the forms 11H (one proton, no neutron), 21H (deuterium: one proton, one neutron), and 31H (tritium: one proton, 2 neutrons). Water in which 21H replaces the more common 11H is known as ‘heavy water’. There are 300... |
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thermonuclear weapon
thermonuclear weapon a bomb in which very high temperatures are used to bring about the fusion of light nuclei such as those of hydrogen isotopes (e.g., deuterium and tritium) with the accompanying release of destructive energy. |
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element, chemical
...which are atoms with different numbers of neutrons in their nuclei. For example, deuterium (1 proton, 1 neutron) and tritium (1 proton, 2 neutrons) are isotopes of hydrogen. In astronomy, all elements heavier than helium are often known collectively... |
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hydrogen bomb
hy·dro·gen bomb • n. an immensely powerful bomb whose destructive power comes from the rapid release of energy during the nuclear fusion of isotopes of hydrogen (deuterium and tritium), using an atom bomb as a trigger. Compare with atom bomb. |
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Tritium Network Launches Free Internet Service in San Jose.
...s hike fees and limit user access -- Tritium is convinced free Net service is the way of the future Tritium Network announced today that it is bringing...for free -- joining the thousands of Tritium customers already established in Atlanta... |
 "The Boston Globe (Boston, MA)")
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TRITIUM LEVEL NOT CRITICAL YET, OFFICIALS SAY
...only US nuclear reactor that produces tritium, a perishable gas vital to the workings...even with no additional production of tritium. Second, Pentagon officials said that...until public safety can be assured. A new tritium-producing plant is in the development... |
 "The Milwaukee Journal Sentinel (Milwaukee, WI)")
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Tritium in water under nuclear plant.
...Thomas Content Aug. 16--The release of tritium underneath the Kewaunee nuclear plant...Kewaunee, stressed that no unsafe levels of tritium have been detected at monitoring wells...of 10 plants around the country where tritium leaks have been found. The nuclear industry... |
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Tritium Network Closes Nationwide Registration for Free Internet Access.
...BUSINESS WIRE)--Aug. 6, 1998-- As Tritium enters its second phase of distribution...in six weeks on September 15, 1998. Tritium Network announced today that it will close...memberships and "grandfathered" into Tritium's distribution strategy. After September... |
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Tritium, pits, and warheads.(US and Russian nuclear weapon maintenance)
...materials for weapons. Chelyabinsk-65 still produces tritium and tritium components for nuclear weapons. The research institutes...Yekaterinburg-45, Penza-19, and Zlatoust-36. Tritium. Tritium is an essential component of all modem thermonuclear... |
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Tritium Network Launches Free Internet Service in Charlotte.
...s Hike Fees and Limit User Access -- Tritium is Convinced Free Net Service is the Way of the Future Tritium Network announced today that it is bringing...email for free - joining the thousands of Tritium customers already established in Boston... |
 "The Independent (London, England)")
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The tritium factor
...Sophisticated nuclear weapons are dependent upon tritium, a rare radioactive gas that decays...by 5 per cent per year. Unless their tritium is replaced, the destructive capacity of the weapons wastes away. Tritium dependence is a serious problem for... |
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Tritium Network Launches Free Internet Service in Houston.
...BUSINESS WIRE)--May 15, 1998--Tritium Network announced today that it is bringing...713 will be able to join thousands of Tritium customers in seven other major metropolitan...the free dial-up service is based on Tritium's patent-pending AdPath technology... |
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Tritium Network Launches Free Internet Service in Atlanta; While Major ISP's...
...BUSINESS WIRE)--June 17, 1998--Tritium Network announced today that it is bringing...email for free - joining the thousands of Tritium customers already established in Boston...considering restricting user access, Tritium Network is operating on another premise... |
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Tritium Found At Peach Bottom ; Report: Levels Above Epa Standards
Levels of tritium six times higher than federal standards...Exelon Nuclear reported Friday that tritium had been discovered in a localized area...performing environmental monitoring. The tritium, which at high levels has been linked... |
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