|MOZBB5||Magnetized Electron Source for JLEIC Cooler||83|
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Funding: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177 and supported by Laboratory Directed Research and Development funding.
Magnetized bunched-beam electron cooling is a critical part of the Jefferson Lab Electron Ion Collider (JLEIC). Strong cooling of ion beams will be accomplished inside a cooling solenoid where the ions co-propagate with an electron beam generated from a source immersed in magnetic field. This contribution describes the production and characterization of magnetized electron beam using a compact 300 kV DC high voltage photogun and bialkali-antimonide photocathodes. Beam magnetization was studied using a diagnostic beamline that includes viewer screens for measuring the shearing angle of the electron beamlet passing through a narrow upstream slit. Correlated beam emittance with magnetic field at the photocathode was measured for various laser spot sizes. Measurements of photocathode lifetime were carried out at different magnetized electron beam currents up to 28 mA and high bunch charge up to 0.7 nano-Coulomb was demonstrated.
|Slides MOZBB5 [9.236 MB]|
|Poster MOZBB5 [1.564 MB]|
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2019-MOZBB5|
|About •||paper received ※ 27 August 2019 paper accepted ※ 01 September 2019 issue date ※ 08 October 2019|
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