UK-based scientists smash nuclear fusion energy record…..

Push to harness the power of the stars takes a leap forward with ‘milestone’ results in atom fusing experiment.

Scientists in the United Kingdom say they have made a major breakthrough in their quest to develop practical nuclear fusion, an achievement hailed as a “milestone” on the path towards harnessing the power of the stars for cheap and clean energy on earth.

The Joint European Torus (JET) laboratory near Oxford in central England generated 59 megajoules of sustained energy during an experiment late last year, more than doubling its own 1997 world record, the UK Atomic Energy Authority announced on Wednesday.

The results from December 21 “are the clearest demonstration worldwide of the potential for fusion energy to deliver safe and sustainable low-carbon energy,” the agency said in a statement.

UK Science Minister George Freeman also hailed the “milestone results”.

“They are evidence that the ground-breaking research and innovation being done here in the UK, and via collaboration with our partners across Europe, is making fusion power a reality,” Freeman said.

Nuclear fusion is the same process that the sun uses to generate heat and proponents believe it could one day help address climate change by providing humanity with an abundant, safe and green source of energy.

December’s feat came after decades of tests and refinements at the Culham Centre for Fusion Energy, which houses the JET experiment.

The laboratory uses a doughnut-shaped machine called a tokamak for its studies. The JET is the largest and most powerful operational tokamak machine in the world.

Inside, a tiny amount of fuel comprising deuterium and tritium – both are isotopes of hydrogen, with deuterium also called heavy hydrogen – is heated to temperatures 10 times hotter than the centre of the sun to create plasma.

This is held in place using superconductor electromagnets as it spins around, fuses and releases tremendous energy as heat.

The process works on the principle that energy can be produced by forcing together atomic nuclei to form new elements, as opposed to splitting them – which is the procedure that powers the world’s existing nuclear power stations.

Fusion is inherently safe in that it cannot start a run-away process and releases nearly four million times more energy per kilogram than burning coal, oil or gas. It also does not produce greenhouse gases and creates virtually no waste.Read More

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