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Antimatter atoms have been trapped for the first time, scientists say.
Researchers at Cern, home of the Large Hadron Collider, have held 38 antihydrogen atoms in place, each for a fraction of a second.
Antihydrogen has been produced before but it was instantly destroyed when it encountered normal matter.
The team, reporting in Nature, says the ability to study such antimatter atoms will allow previously impossible tests of fundamental tenets of physics.
According to the National Ignition Facility (NIF) team in Livermore, on November 2 they fired up the 192 lasers beams at the centre of the reactor and aimed them at a glass target containing tritium and deuterium gas.
The resulting release of energy was of a magnitude of 1.3 million mega joules, which was a world record and the peak radiation temperature measure at the core was approximately six million degrees Fahrenheit.
For a direct comparison, the temperature at the centre of the sun is 27 million degrees Fahrenheit.
However, this recent experiment was not 'live' in that no self-sustaining fusion reaction was set off, although the scientists at NIF are extremely confident for the future.
Read more: www.dailymail.co.uk...
Hangst and his colleagues, who included scientists from Britain, Brazil, Canada, Israel and the United States, trapped 38 anti-hydrogen atoms individually. Hangst says that since the experiments they reported in Nature, they've been able to hold on to the atoms even longer.
"Unfortunately I can't tell you how long, because we haven't published the number yet," Hangst told the AP. "But I can tell you that it's much, much longer than a tenth of a second. Within human comprehension on a real clock."
Studying such trapped atoms could help answer basic questions in physics, like why antimatter has disappeared from the natural universe while ordinary matter abounds in the stars, planets and galaxies. Theorists say both must have been created in equal amounts in the Big Bang.
Two teams had been competing to trap anti-hydrogen atoms at CERN, the world's largest physics lab best known for its $10 billion smasher, the Large Hadron Collider. The collider, built deep under the Swiss-French border, wasn't used for this experiment.
In antimatter-matter collisions resulting in photon emission, the entire rest mass of the particles is converted to kinetic energy. The energy per unit mass (9×1016 J/kg) is about 10 orders of magnitude greater than chemical energy (compared to TNT at 4.2×106 J/kg, and formation of water at 1.56×107 J/kg), about 4 orders of magnitude greater than nuclear energy that can be liberated today using nuclear fission (about 200 MeV per atomic nucleus that undergoes nuclear fission,[31] or 8×1013 J/kg), and about 2 orders of magnitude greater than the best possible from fusion (about 6.3×1014 J/kg for the proton-proton chain).
The reaction of 1 kg of antimatter with 1 kg of matter would produce 1.8×1017 J (180 petajoules) of energy (by the mass-energy equivalence formula E = mc²), or the rough equivalent of 43 megatons of TNT. For comparison, Tsar Bomb, the largest nuclear weapon ever detonated, reacted an estimated yield of 50 megatons, which required the use of tens of kilograms[citation needed] of fissile material (Uranium/Plutonium) (hundreds for the full-yield 100 megaton design), and two tons of lithium deuteride (fusion fuel).[32]
Originally posted by colonelblake
the other larger controversy is that they created a big bang. basically wiping out the theory of a divine creation.
dan brown should be all over this in a couple of years. lol.edit on 22-11-2010 by colonelblake because: (no reason given)
Originally posted by colonelblake
the other larger controversy is that they created a big bang. basically wiping out the theory of a divine creation.
dan brown should be all over this in a couple of years. lol.edit on 22-11-2010 by colonelblake because: (no reason given)