Abstract The existing Brillouin-type electron gun at the TwinEBIS test bench is, according to Herrmann theory, capable of producing an beam with a current density 3850 A/cm 2 in T solenoid. To control and magnetic flux inside beam, - now using purely electrostatic focusing can be modified by permitting reach cathode. In such configuration, stabilizing controlled changing magnet coil surrounding...

Polarized electron beams will play a crucial role in maximizing the physics potential for future e + /e Ð linear colliders. We will review the SLC polarized electron source (PES), present a design for a conventional PES for the Next Linear Collider (NLC), and discuss the physics issues of a polarized RF gun.

A status report of the superconducting RF photo electron injector development at Forschungszentrum DresdenRossendorf (FZD) is given. The SRF gun project is a collaboration of BESSY, DESY, MBI and FZD and aims at the installation of a high average current CW photo injector at the ELBE superconducting electron linac. Main design parameters of the SRF gun are an electron energy of 9.5 MeV, a maxim...