Emittance measurements in the ALS booster synchrotron

Beam emittance measurements in the Advanced Light Source Booster Synchrotron are presented. Electrons are injected at 50 MeV and extracted at various energies ranging from 150 MeV to 1,520 MeV. The extracted beam is then transported in the Booster-to-Storage-Ring beam transfer line where the emittances are measured. Beam sizes are measured at 7 locations using scintillators and CCD cameras. The measured emittances are then compared with the theory based on intra- beam scattering, betatron coupling, radiation damping, and radiation excitation