Review of photocathodes for electron beam sources in particle accelerators

J Schaber, R Xiang, N Gaponik - Journal of Materials Chemistry C, 2023 - pubs.rsc.org
This paper compares different photocathodes that are applicable for electron injector
systems and summarizes the development in cathode technology in the last years. The …

C Demonstration Research and Development Plan

EA Nanni, M Breidenbach, C Vernieri… - arXiv preprint arXiv …, 2022 - arxiv.org
C $^ 3$ is an opportunity to realize an e $^+ $ e $^-$ collider for the study of the Higgs
boson at $\sqrt {s}= 250$ GeV, with a well defined upgrade path to 550 GeV while staying on …

New spin-polarized electron source based on alkali antimonide photocathode

VS Rusetsky, VA Golyashov, SV Eremeev, DA Kustov… - Physical review …, 2022 - APS
New spin-dependent photoemission properties of alkali antimonide semiconductor cathodes
are predicted based on the detected optical spin orientation effect and DFT band structure …

Status and future plans for C3 R&D

EA Nanni, M Breidenbach, Z Li, C Vernieri… - Journal of …, 2023 - iopscience.iop.org
C 3 is an opportunity to realize an e+ e-collider for the study of the Higgs boson at√ s= 250
GeV, with a well defined upgrade path to 550 GeV while staying on the same short facility …

Measurement of spin-polarized photoemission from wurtzite and zinc blende gallium nitride photocathodes

SJ Levenson, MB Andorf, BD Dickensheets… - Applied Physics …, 2024 - pubs.aip.org
Spin-polarized photoemission from wurtzite and zinc blende gallium nitride (GaN)
photocathodes has been observed and measured. The p-doped GaN photocathodes were …

[HTML][HTML] High quantum efficiency GaAs photocathodes activated with Cs, O2, and Te

J Biswas, E Wang, M Gaowei, W Liu, O Rahman… - AIP Advances, 2021 - pubs.aip.org
GaAs photocathodes are the primary choice for generating spin-polarized electron beam
with high brightness, high polarization, and fast polarization reversal. However, it suffers …

Comparison of activation behavior of Cs-O and Cs-NF3-adsorbed GaAs (1 0 0)-β2 (2× 4) surface: From DFT simulation to experiment

S Li, Y Zhang, K Zhang, J Zhang, J Zhan, F Shi… - Journal of Colloid and …, 2022 - Elsevier
To clarify the performance differences between Cs-O and Cs-NF 3-activated GaAs
photocathodes, the changes in adsorption characteristics with Cs coverage for the Cs-O and …

[HTML][HTML] Record quantum efficiency from strain compensated superlattice GaAs/GaAsP photocathode for spin polarized electron source

J Biswas, L Cultrera, W Liu, E Wang, J Skaritka… - AIP Advances, 2023 - pubs.aip.org
Photocathodes based on GaAs and other III–V semiconductors are capable of producing
highly spin-polarized electron beams. GaAs/GaAsP superlattice photocathodes exhibit high …

Long lifetime polarized electron beam production from negative electron affinity GaAs activated with Sb-Cs-O: Trade-offs between efficiency, spin polarization, and …

L Cultrera, A Galdi, JK Bae, F Ikponmwen… - … Review Accelerators and …, 2020 - APS
GaAs-based photocathodes are the state-of-the-art in the production of highly spin-polarized
electron beams for accelerator and microscopy applications. While various novel structures …

Effect of excessive Cs and O on activation of GaAs (100) surface: From experiment to theory

Y Zhang, K Zhang, S Li, S Li, Y Qian, F Shi… - Journal of Applied …, 2020 - pubs.aip.org
The surface Cs–O activation process directly determines quantum efficiency and stability of
negative-electron-affinity photocathodes. To investigate the effects of excessive Cs and O …