Speaker
Description
Multi-alkali antimonide photocathodes are selected as candidates for electron sources that can continuously generate electron beams with high average current, high bunch charge, and low emittance. Such electron sources are essential for the current electron cooling scheme in Electron Ion Collider (EIC) to cool the hadron beams and maintain beam luminosity. In BNL, epitaxial growth of multi-alkali antimonide photocathodes on lattice-matched substrates are investigated to achieve improved photocathode properties and performances. In this work, epitaxial growth of Na-K-Sb is reported and characterized by reflection high energy electron diffraction (RHEED). Spectral response of the epitaxial Na-K-Sb photocathodes along with lifetime tests are conducted and reported.
Funding Agency
Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
| Region represented | America |
|---|---|
| Paper preparation format | Word |
