The Tevatron was a synchrotron that accelerated protons and antiprotons in a 6.86 km , or 4.26 mi , ring to energies of up to 1 TeV , hence its name .
The Tevatron is a synchrotron that accelerates protons and antiprotons in a 6.28 km ( 3.90 miles ) ring to energies of up to 1 TeV , hence its name .