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Title: Ultra-low Emittance Photocathodes for Accelerators and Femtosecond Electron Diffraction

Abstract

To advance low emittance photocathodes suitable for accelerators and ultrafast electron diffraction the following directions have been investigated: 1) growth and characterization of alkali photocathodes in the new regime where their intrinsic emittance is limited by the material lattice temperature; 2) extending Monte Carlo electron transport modeling in photocathodes to cryogenic temperatures; 3) numerical simulations of sharp photo-emitting tips that enhance the electric field available; and 4) exploration of new protective coatings on III-V semiconductor photocathodes as robust high efficiency low-emittance sources of electrons. The key results achieved in these four areas as enabled by this grant are highlighted in this final technical report.

Authors:
 [1];  [1]
  1. Cornell Univ., Ithaca, NY (United States)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1483870
Report Number(s):
DOE-CORNELL-0014338
DOE Contract Number:  
SC0014338
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bazarov, Ivan, and Cultrera, Luca. Ultra-low Emittance Photocathodes for Accelerators and Femtosecond Electron Diffraction. United States: N. p., 2018. Web. doi:10.2172/1483870.
Bazarov, Ivan, & Cultrera, Luca. Ultra-low Emittance Photocathodes for Accelerators and Femtosecond Electron Diffraction. United States. doi:10.2172/1483870.
Bazarov, Ivan, and Cultrera, Luca. Thu . "Ultra-low Emittance Photocathodes for Accelerators and Femtosecond Electron Diffraction". United States. doi:10.2172/1483870. https://www.osti.gov/servlets/purl/1483870.
@article{osti_1483870,
title = {Ultra-low Emittance Photocathodes for Accelerators and Femtosecond Electron Diffraction},
author = {Bazarov, Ivan and Cultrera, Luca},
abstractNote = {To advance low emittance photocathodes suitable for accelerators and ultrafast electron diffraction the following directions have been investigated: 1) growth and characterization of alkali photocathodes in the new regime where their intrinsic emittance is limited by the material lattice temperature; 2) extending Monte Carlo electron transport modeling in photocathodes to cryogenic temperatures; 3) numerical simulations of sharp photo-emitting tips that enhance the electric field available; and 4) exploration of new protective coatings on III-V semiconductor photocathodes as robust high efficiency low-emittance sources of electrons. The key results achieved in these four areas as enabled by this grant are highlighted in this final technical report.},
doi = {10.2172/1483870},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}