DOE OSTI · 1825068
SPACE CHARGE EFFECT IN LOW ENERGY MAGNETIZED ELECTRON BEAM
Abstract
Magnetized electron cooling is one of the major approaches towards obtaining the required high luminosity in the proposed Electron-Ion Collider (EIC). In order to increase the cooling efficiency, a bunched electron beam with a high bunch charge and high repetition rate is required. At Jefferson Lab, we generated magnetized electron beams with high bunch charge using a new compact DC high voltage photogun biased at -300 kV with bialkali-antimonide photocathode and a commercial ultra-fast laser. This contribution discusses how magnetization affects space charge dominated beams as a function of magnetic field strength, gun high voltage, and laser pulse width, and spot size in comparison with simulations performed using General Particle Tracer.
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Wijethunga, S.A.K., Krafft, Geoffrey, Delayen, Jean R., Benesch, Jay F., Mamun, M. A., Poelker, Matt, Suleiman, Riad, Zhang, Shukui. 2021-09-01. SPACE CHARGE EFFECT IN LOW ENERGY MAGNETIZED ELECTRON BEAM. https://doi.org/10.18429/jacow-ipac2021-wepab093
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