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Electron transport and emission in diamond

  • J. Smedley
  • , I. Ben-Zvi
  • , X. Chang
  • , P. D. Johnson
  • , J. D. Rameau
  • , T. Rao
  • , Q. Wu
  • , E. Muller
  • , J. Bohon
  • Brookhaven National Laboratory
  • Stony Brook University
  • Case Western Reserve University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The diamond amplified photocathode has the potential to dramatically increase the average current available from photoinjectors, perhaps to the ampere-class performance necessary for flux-competitive fourth-generation light sources. Electron emission from a diamond amplifier has been observed from hydrogen-terminated diamond, using either photons or electrons to generate carriers. An emission gain of 40 has been achieved using a thermionic cathode and a gain of 6 from amplification of electrons from a photocathode. Very high average current densities (<10 A/cm2) have been transported through the diamond using x-ray generated carriers. The electron affinity of hydrogen-terminated diamond has been measured to be about -1.1 eV.

Original languageEnglish
Title of host publicationIPAC 2010 - 1st International Particle Accelerator Conference
Pages2132-2134
Number of pages3
StatePublished - 2010
Event1st International Particle Accelerator Conference, IPAC 2010 - Kyoto, Japan
Duration: May 23 2010May 28 2010

Publication series

NameIPAC 2010 - 1st International Particle Accelerator Conference

Conference

Conference1st International Particle Accelerator Conference, IPAC 2010
Country/TerritoryJapan
CityKyoto
Period05/23/1005/28/10

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