Abstract: An adiabatically expanded low energy electron-cooling system and method for increasing the phase space intensity and overall intensity of low energy particle beams, including a vacuum-chamber to allow electron beam and particle beam merging and separation, a cathode to generate the electron beam, a collector to collect the electron beam, magnetic field generation devices including solenoids and toroids to guide the electrons on their desired trajectories, ports to allow particles to enter and leave, neutralizing-background-ions to neutralize electron electric fields, electrodes to accelerate and decelerate the electron beam and an adiabatic-solenoid to enable electron beam expansion. By overlapping the electron and particle beams in an overlap-region, thermal energy is transferred from the particle beam to the electron beam, which allows an increase in the phase space density and overall density of the particle beams.

Abstract: An adiabatically expanded low energy electron-cooling system and method for increasing the phase space intensity and overall intensity of low energy particle beams, including a vacuum-chamber to allow electron beam and particle beam merging and separation, a cathode to generate the electron beam, a collector to collect the electron beam, magnetic field generation devices including solenoids and toroids to guide the electrons on their desired trajectories, ports to allow particles to enter and leave, neutralizing-background-ions to neutralize electron electric fields, electrodes to accelerate and decelerate the electron beam and an adiabatic-solenoid to enable electron beam expansion. By overlapping the electron and particle beams in an overlap-region, thermal energy is transferred from the particle beam to the electron beam, which allows an increase in the phase space density and overall density of the particle beams.