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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 ...
Deuterium–tritium fusion: 576,000,000 [1] Uranium-235 fissile isotope: ... Energy density by mass (MJ/kg) Energy density by volume (MJ/L) Peak recovery efficiency %
Tritium consists of 1 proton, 2 neutrons, and 1 electron. Tritium, 3 H (atomic mass 3.016 049 281 320 (81) Da), has one proton and two neutrons in its nucleus (triton). It is radioactive, β − decaying into helium-3 with half-life 12.32(2) years. [nb 1] [3] Traces of 3 H occur naturally due to cosmic rays interacting with atmospheric gases.
In terms of density, m = ρV, where ρ is the volumetric mass density, V is the volume occupied by the mass. This energy can be released by the processes of nuclear fission (~ 0.1%), nuclear fusion (~ 1%), or the annihilation of some or all of the matter in the volume V by matter–antimatter collisions (100%). [citation needed]
<1 polonium-192m ~1 radon-210m3: 1.04 thorium-219: 1.05 polonium-206m2: 1.05 radon-210m2: 1.06 curium-243m: 1.08 actinium-218: 1.08 lead-192m2: 1.1 plutonium-237m2: 1.1 lead-197m2: 1.15 americium-241m: 1.2 radium-215m2: 1.39 bismuth-211m: 1.4 uranium-222: 1.4 radium-217: 1.63 neptunium-223: 2.15 radium-210m: 2.24 radon-215: 2.30 bismuth-217m: 2 ...
A human body containing 16 kg (35 lb) of carbon (see Composition of the human body) would also have about 24 nanograms or 0.1 μCi of carbon-14. Together, these would result in a total of approximately 0.2 μCi or 7400 decays per second inside the person's body (mostly from beta decay but some from gamma decay).
An overview of ranges of mass. To help compare different orders of magnitude, the following lists describe various mass levels between 10 −67 kg and 10 52 kg. The least massive thing listed here is a graviton, and the most massive thing is the observable universe.
In DTF, one deuteron fuses with one tritium, yielding one helium nucleus, a free neutron, and 17.6 MeV, which is derived from about 0.02 AMU. [1] The amount of energy obtained is described by the mass–energy equivalence: E = mc 2. 80% of the energy (14.1 MeV) becomes kinetic energy of the neutron traveling at 1/6 the speed of light.