Photoemission from K–Te photocathodes

D. Bisero; B.M. van Oerle; G.J. Ernst; J.W.J. Verschuur; W.J. Witteman

doi:10.1063/1.117009

Photoemission from K–Te photocathodes

D. Bisero, B.M. van Oerle, G.J. Ernst, J.W.J. Verschuur, W.J. Witteman

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

In this letter the photoemissive properties of K–Te films produced under ultrahigh vacuum conditions are reported. K–Te photocathodes were fabricated by vapor deposition of Te and K onto a Mo substrate into the preparation chamber of the Free Electron Laser of the University of Twente. The highest quantum efficiency obtained at 259 nm was 11.1%, measured just after evaporation; this value decreased in a few minutes to a stable quantum efficiency of 8.3%. The reported results show that K–Te can be considered a promising material for the use as a photocathode in photoinjectors.

Original language	English
Pages (from-to)	3641-3642
Number of pages	2
Journal	Applied physics letters
Volume	69
Issue number	24
DOIs	https://doi.org/10.1063/1.117009
Publication status	Published - 1996

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title = "Photoemission from K–Te photocathodes",

abstract = "In this letter the photoemissive properties of K–Te films produced under ultrahigh vacuum conditions are reported. K–Te photocathodes were fabricated by vapor deposition of Te and K onto a Mo substrate into the preparation chamber of the Free Electron Laser of the University of Twente. The highest quantum efficiency obtained at 259 nm was 11.1%, measured just after evaporation; this value decreased in a few minutes to a stable quantum efficiency of 8.3%. The reported results show that K–Te can be considered a promising material for the use as a photocathode in photoinjectors.",

author = "D. Bisero and {van Oerle}, B.M. and G.J. Ernst and J.W.J. Verschuur and W.J. Witteman",

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T1 - Photoemission from K–Te photocathodes

AU - Bisero, D.

AU - van Oerle, B.M.

AU - Ernst, G.J.

AU - Verschuur, J.W.J.

AU - Witteman, W.J.

PY - 1996

Y1 - 1996

N2 - In this letter the photoemissive properties of K–Te films produced under ultrahigh vacuum conditions are reported. K–Te photocathodes were fabricated by vapor deposition of Te and K onto a Mo substrate into the preparation chamber of the Free Electron Laser of the University of Twente. The highest quantum efficiency obtained at 259 nm was 11.1%, measured just after evaporation; this value decreased in a few minutes to a stable quantum efficiency of 8.3%. The reported results show that K–Te can be considered a promising material for the use as a photocathode in photoinjectors.

AB - In this letter the photoemissive properties of K–Te films produced under ultrahigh vacuum conditions are reported. K–Te photocathodes were fabricated by vapor deposition of Te and K onto a Mo substrate into the preparation chamber of the Free Electron Laser of the University of Twente. The highest quantum efficiency obtained at 259 nm was 11.1%, measured just after evaporation; this value decreased in a few minutes to a stable quantum efficiency of 8.3%. The reported results show that K–Te can be considered a promising material for the use as a photocathode in photoinjectors.

U2 - 10.1063/1.117009

DO - 10.1063/1.117009

M3 - Article

VL - 69

SP - 3641

EP - 3642

JO - Applied physics letters

JF - Applied physics letters

SN - 0003-6951

IS - 24

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