SIMULATION OF 10 A ELECTRON-BEAM FORMATION AND COLLECTION FOR A HIGH-CURRENT ELECTRON-BEAM ION-SOURCE

Presented is a report on the development of an electron-beam ion sourc e (EBIS) for the relativistic heavy ion collider at Brookhaven Nationa l Laboratory (BNL) which requires operating with a 10 A electron beam. This is approximately an order of magnitude higher current than in an y existing EBIS device. A test stand is presently being designed and c onstructed where EBIS components will be tested. It will be reported i n a separate paper at this conference. The design of the 10 A electron gun, drift tubes, and electron collector requires extensive computer simulations. Calculations have been performed at Novosibirsk and BNL u sing two different programs, SAM and EGUN. Results of these simulation s will be presented. (C) 1998 American Institute of Physics.