They consider as one of the options a life support system generating drinking water with low content of Deuterium ( a stable isotope of hydrogen ) to be consumed by the crew members.

This isotope is harder to fuse than either the Deuterium or Tritium isotopes of hydrogen.

Hydrogen-2 ( Deuterium ) is a naturally occurring isotope of hydrogen and is commonly available.

Deuterium is in some ways the opposite of helium-4 in that while helium-4 is very stable and very difficult to destroy, deuterium is only marginally stable and easy to destroy.

Deuterium represents only 0. 015 % of the hydrogen in water and must be enriched to greater than 99 % for use in a reactor.

* November 25 – Heavy Hydrogen, later named Deuterium, is discovered by chemist Harold Clayton Urey.

Longshot would have a mass of at the start of the mission, including 264 tonnes of Helium-3 / Deuterium pellet fuel / propellant.

Deuterium abundance in the galaxy, Astrophysical Raman Masers, OH emission from clouds and later on building of the low frequency telescopes at Gauribidanur and Mauritius were some of the hallmarks of his career.

However, there's a massive Deuterium Bomb under the Nematoda base, activated by Wakatsuki's death, which is large enough to destroy the world.

Deuterium comprises 0. 0026 – 0. 0184 % ( by population, not by mass ) of hydrogen samples on Earth, with the lower number tending to be found in samples of hydrogen gas and the higher enrichments ( 0. 015 % or 150 ppm ) typical of ocean water.

Deuterium HCL or even hydrogen HCL and deuterium discharge lamps are used in LS AAS for background correction purposes.

The CANDU ( short for CANada Deuterium Uranium ) reactor is a Canadian-invented, pressurized heavy water reactor.

* Annotated bibliography for Deuterium from the Alsos Digital Library for Nuclear Issues

One major advantage of neutron diffraction over X-ray diffraction is that the latter is rather insensitive to the presence of hydrogen ( H ) in a structure, whereas the nuclei < sup > 1 </ sup > H and < sup > 2 </ sup > H ( i. e. Deuterium, D ) are strong scatterers for neutrons.

Deuterium is used in ultraviolet lamps for ultraviolet spectroscopy, in neutron generator tubes, and in special tubes ( e. g. crossatron ).

Deuterium and its compounds are used as a non-radioactive label in chemical experiments and in solvents for < sup > 1 </ sup > H-NMR spectroscopy.

Deuterium is also a potential fuel for commercial nuclear fusion.

Deuterium atoms can be absorbed into a palladium ( Pd ) lattice.

Deuterium fusion can occur in some objects with mass below that cutoff.

The difference of 0. 00472 u or 0. 03 % comes from the fact that natural water contain traces of water molecules containing, oxygen-17, oxygen-18 or hydrogen-2 ( Deuterium ) atoms.

There are also situations where the isotopic distributions are not typical such as with heavy water used in some nuclear reactors which is artificially enriched with Deuterium.

Significant portions of the 1996 chase movie Chain Reaction were filmed in the Zero-Gradient Synchrotron ring room and the former Continuous Wave Deuterium Demonstrator laboratory.

Deuterium extraction is done based on the difference in separation between 30 ° C and 130 ° C.

Ocean water is mostly, with small amounts of and, where D denotes Deuterium, i. e. Hydrogen with an extra neutron.

Upon rapid β-decay, < sup > 242 </ sup > Am converts into the isotope of curium < sup > 242 </ sup > Cm ( which had been discovered previously ).

Initial examination of the debris from the explosion had shown the production of a new isotope of plutonium,, which could only have formed by the absorption of six neutrons by a uranium-238 nucleus followed by two beta decays.

There had been evidence of dineutron emission from neutron-rich isotopes such as beryllium-16 where mononeutron decay would result in a less stable isotope.

At Chicago, he had received a grant from the National Research Council ( NRC ) which had paid for much of his work on isotope separation.

In September 1944, he arrived at Los Alamos, shortly after breathing life into the first Hanford reactor, which had been poisoned by a xenon isotope.

The experiment began in June 2009 and, in January 2010, scientists at the Flerov Laboratory of Nuclear Reactions announced internally that they had succeeded in detecting the decay of a new element with Z = 117 via two decay chains of an odd-odd isotope ( undergoing 6 alpha decays before undergoing a spontaneous fission ) and of an odd-even one ( 3 alpha decays before fission ).

But in April 1944 it was found by Emilio Segrè that the plutonium produced by the Hanford reactors had too high a level of background neutron radiation, and underwent spontaneous fission to a very small extent, due to the presence of impurities of the Pu-240 isotope.

Asimov describes a conversation in January 1971 when Robert Silverberg had to refer to an isotope — just an arbitrary one — as an example.

Eight of these were forked, and this showed that the nitrogen atom-alpha particle combination had formed an atom of fluorine, which then disintegrated into an isotope of oxygen and a proton.

In January 2010, it was reported that tritium, a radioactive isotope of hydrogen, had been discovered in a sample of ground water taken from a monitoring well the previous November.

Sark escapes from the club, but Sloane had previously laced Sark's wine with a radioactive isotope and is tracking his location by satellite.

To obtain soil with a different isotope ratio to normal, they obtained soil from North America on which C4 plants had been grown, giving it a different signature to soil on which C3 plants.

Prior to 1959 both the IUPAP and IUPAC tended to use oxygen to define the mole, the chemists defining the mole as the number of atoms of oxygen which had mass 16 g, the physicists using a similar definition but with the oxygen-16 isotope only.

After a horrific battle between Exodus and Man Beast, the two came to the conclusion that they had much in common and decided to share the isotope.

Quicksilver eventually escaped, gained control of Isotope E himself, turned the isotope on himself, and became more powerful than he had ever been before.

However, modern strontium isotope analysis of the human remains recovered from the tomb attributed to him indicate that K ' inich Yax K ' uk ' Mo ' spent his formative years much closer to Copán, at Tikal, and had not himself lived at Teotihuacan.

The carbon isotope ratios of P. boisei suggest that it had a diet dominated by C4 vegetation.

FR2 started up on December 12, 1962, and ceased operation in December 1981., the reactor core is contained, and the auxiliary buildings have been demolished or are being used for non-nuclear research activities, mostly in micro process engineering, which uses manufacturing technologies that originated from mechanical microstructuring processes that had been developed in the context of nuclear technologies ( isotope separation ).

A further important advance came in 1967, when Nicholas Shackleton suggested that the fluctuations over time in the marine isotope ratios that had then become evident were caused not so much by changes in water temperature, as Emiliani thought, but mainly by changes in the volume of ice-sheets, which when they expanded took up the lighter oxygen-16 isotypes in preference to the heavier oxygen-18.

The gaps in the ages of the compression cycles and isotope analysis of hornblende, biotite, and potassium feldspar suggest that extension was occurring when compression had momentarily ceased .< ref name =" corrigan ">

Helium-2,, also known as a diproton, is an isotope of helium, which according to theoretical calculations would have been stable had the strong force been 2 % greater.