 By this time two additional tokamak designs had been completed, TM-2 in 1965, and T-4 in 1968.Results from T-3 had continued to improve, and similar results were coming from early tests of the new reactors.At the meeting, the Soviet delegation announced that T-3 was producing electron temperatures of 1000 eV (equivalent to 10 million degrees Celsius) and that confinement time was at least 50 times the Bohm limit.