Fifteen years of B-Factory beam

First beam injected into B-Factory: On May 10, 1997, "at about 3:00 a.m. the first beam was injected into the PEP-II high energy ring and immediately traveled a third of the way around the 2 kilometer circumference."

First Beam in our B-Factory, All Hands Memo, 5/12/1997

Status and Early Commissioning of the PEP-II High Energy Ring, SLAC-Pub-9772