fermi lab

This Day in Science History --

(13 October) 

#OTD in 1985, at the Fermi National Accelerator Laboratory in Illinois, the first observation was made of #protonantiproton collisions by the Collider Detector at Fermilab (CDF) with 1.6 TeV center-of-mass energy. Since then, researchers at the CDF and DZero experiments have used the Tevatron to study matter at ever smaller scales.

In all, 23 of #collisions were detected in Oct 1985. The #Tevatron, four miles in circumference (originally named the Energy Doubler), is the world's highest-energy particle #accelerator. Its low-temperature cooling system was the largest ever built when it was placed in operation in 1983. Its 1,000 superconducting magnets are cooled by liquid #helium to -268°C (-450°F).

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