Progress report on simulations of a magnetized neutralized electron cooler

Existing designs for a future electron-ion collider (EIC) employ electron cooling, typically in the regime of strong magnetization, in order to reach high luminosities. Neutralization of the space charge in such a cooler can significantly increase the magnetized dynamic friction and hence the cooling rate. The particle-in-cell (PIC) code Warp is being used to simulate magnetized electron beam dynamics during and after the build-up of neutralizing ions, via ionization of residual gas in the cooler. A summary of simulations performed and preliminary results is given.