New superconducting particle accelerator achieves temperatures colder than space here on Earth

A particle accelerator that throws electrons together on Earth has achieved temperatures colder than those in space.

Use X ray free-electron laser at the Department of Energy’s SLAC National Accelerator Laboratory – part of a project to upgrade to a Linac Coherent Light Source (LCLS), known as LCLS II – scientists cooled liquid helium to minus 456 degrees Fahrenheit (minus 271 degrees Celsius), or 2 kelvins. That’s just 2 kelvins above absolute zero, the coldest possible temperature at which all particle motion stops. That icy environment is important for the accelerator, because at such low temperatures the machine becomes superconducting, which means it can spur electrons through it without losing zero energy. .

https://www.livescience.com/superconducting-particle-accelerator-space-temps New superconducting particle accelerator achieves temperatures colder than space here on Earth

Russell Falcon

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