Compact −300 kV dc inverted insulator photogun with biased anode and alkali-antimonide photocathode
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Accelerators and Beams"
DOI: 10.1103/physrevaccelbeams.22.113401
Abstract: This contribution describes the latest milestones of a multiyear program to build and operate a compact $\ensuremath{-}300\text{ }\text{ }\mathrm{kV}$ dc high voltage photogun with inverted insulator geometry and alkali-antimonide photocathodes. Photocathode thermal emittance measurements and… read more here.
Keywords: photocathode; biased anode; alkali antimonide; compact 300 ... See more keywords
New Spin-Polarized Electron Source Based on Alkali Antimonide Photocathode.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.166802
Abstract: New spin-dependent photoemission properties of alkali antimonide semiconductor cathodes are predicted based on the detected optical spin orientation effect and DFT band structure calculations. Using these results, the Na_{2}KSb/Cs_{3}Sb heterostructure is designed as a spin-polarized… read more here.
Keywords: spin polarized; electron source; polarized electron; spin ... See more keywords
Development and Characterization of Multi-Alkali Antimonide Photocathodes for High-Brightness RF Photoinjectors
Sign Up to like & getrecommendations! Published in 2023 at "Micromachines"
DOI: 10.3390/mi14061182
Abstract: Due to their excellent photoemissive properties, especially low thermal emittance and high sensitivity in the green wavelength, multi-alkali antimonide photocathodes, in particular, cesium–potassium–antimonide, emerged as prominent photoemissive materials for the electron sources of high-repetition-rate FEL… read more here.
Keywords: alkali; multi alkali; antimonide photocathodes; optical properties ... See more keywords