Recent Developments of Low-emittance Electron Gun for Accelerator

Generation of amplified picosecond square pulses for low emittance electron generation in photocathode RF-GUN

Amplified square shaped picosecond pulses was generated for low emittance electron beam generation in a photocathode RF-GUN. Square shaped pulses were generated by using Ti:sapphire amplifier system in inrfared region and then converted to ultraviolet region via third harmonics generation. Generated squares shaped pulses were measeured by crosscorrelation and spectral interferometric technique ...

Ultrashort-pulse relativistic electron gun/accelerator

Laser driven plasma waves have up to now been considered exclusively as second stage accelerators. Conventional finacs are used in this case as the first stage of acceleration to inject MeV electrons into the plasma. This paper shows it to be advantageous to instead use laser wake fields in the first stage for greater simplicity and better emittance. The concept presented makes this possible wi...

The Slac Low Emittance Accelerator Test Facility

SLAC is proposing to build a new Accelerator Test Facility (ATF) capable of producing a 50 MeV electron beam with an extremely low geometric tran8ver8e emittance (1.5 x lo-lo rad.m) for the purpose of teeting new methods of acceleration. The low emittance will be achieved by a88ernbling a liiur accelerator using one standard SLAC three-meter r&ion and a 400 kV electron gun with a very rmall pho...

The Electron Gun for the Stanford Two - Mile Accelerator

The design of the electron gun for an electron linear accelerator is of prime importance in achieving a small emittance volume and good reliability. This paper discusses phase space concepts useful in gun design, the design of the SLAC electron gun, and tests of its performance. A convenient definition for the effective area in phase space of a finite set of calculated points is proposed and a ...

Low Emittance Thermionic Electron Guns*