Number 136 (Story #3), July 9, 1993 by Phillip F. Schewe and Ben Stein THE ADVANCED LIGHT SOURCE (ALS) , the 1.5 GeV synchrotron radiation machine at LBL, is almost ready for doing physics research. In recent tests the number of circulating electrons exceeded the design current of 400 mA. When undulators meant to enhance the electrons' synchrotron emission are installed, the ALS should provide high-brightness light beams in the vacuum ultraviolet and soft x-ray wavelength ranges. (CERN Courier, June 1993.)