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Search: WFRF:(Gontad F.) > (2016)

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1.
  • Lorusso, A., et al. (author)
  • Structural and morphological properties of metallic thin films grown by pulsed laser deposition for photocathode application
  • 2016
  • In: Applied Physics A. - : Springer Berlin/Heidelberg. - 0947-8396 .- 1432-0630. ; 122:3, s. 1-5
  • Journal article (peer-reviewed)abstract
    • In this work yttrium and lead thin films have been deposited by pulsed laser deposition technique and characterized by ex situ different diagnostic methods. All the films were adherent to the substrates and revealed a polycrystalline structure. Y films were uniform with a very low roughness and droplet density, while Pb thin films were characterized by a grain morphology with a relatively high roughness and droplet density. Such metallic materials are studied because they are proposed as a good alternative to copper and niobium photocathodes which are generally used in radiofrequency and superconducting radiofrequency guns, respectively. The photoemission performances of the photocathodes based on Y and Pb thin films have been also studied and discussed.
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2.
  • Lorusso, A., et al. (author)
  • Tight comparison of Mg and Y thin film photocathodes obtained by the pulsed laser deposition technique
  • 2016
  • In: Nuclear Instruments and Methods in Physics Research Section A. - : ELSEVIER SCIENCE BV. - 0168-9002 .- 1872-9576. ; 836, s. 57-60
  • Journal article (peer-reviewed)abstract
    • In this work Magnesium (Mg) and Yttrium (Y) thin films have been deposited on Copper (Cu) polycrystalline substrates by the pulsed laser ablation technique for photocathode application. Such metallic materials are studied for their interesting photoemission properties and are proposed as a good alternative to the Cu photocathode, which is generally used in radio-frequency guns. Mg and Y films were uniform with no substantial differences in morphology; a polycrystalline structure was found for both of them. Photoemission measurements of such cathodes based on thin films were performed, revealing a quantum efficiency higher than Cu bulk. Photoemission theory according to the three-step model of Spicer is invoked to explain the superior photoemission performance of Mg with respect to Y. (C) 2016 Elsevier B.V. All rights reserved.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Broitman, Esteban (2)
Chiadroni, E. (2)
Lorusso, A. (2)
Perrone, A. (2)
Gontad, F (2)
Caricato, A. P. (1)
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Solombrino, L. (1)
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University
Linköping University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)
Year
2016 (2)Undo refine

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