BEAM DYNAMICS SIMULATIONS FOR THE ESS-BILBAO H − ION SOURCE ∗

Beam dynamics simulations are performed for the hydrogen negative ion source (ISHN) extraction system of the ESS-Bilbao research accelerator facility. The calculations are performed as a function of platform and extraction potentials, extracted beam current, and the Penning angle. It is expected that calculations will help, not only to improve the extraction system geometry, but its modus operandi.