The PEP-II high power beam dumping system

The beam abort system utilizes a single turn beam extraction into a beam dump placed outside the rings vacuum chambers. During extraction the beam is deflected by a pulsed dipole magnet and is scanned across an exit window and the dump face to avoid overheating the materials. The system is designed for 3 A circulating beam current which corresponds to 200 kJ of stored beam energy in the High Energy Ring at 9 GeV.