ADA collider

ADA (Anello Di Accumulazione) was the first Italian particle accelerator and the first-ever electron–positron particle collider. It was operated from 1961 to 1964, by the National Institute of Nuclear Physics, in Frascati, Italy.
See also

ADONE
Laboratori Nazionali di Frascati
Istituto Nazionale di Fisica Nucleare

References...