Thermal emittance and response time of a cesium antimonide photocathode

Luca Cultrera; Ivan Bazarov; Adam Bartnik; Bruce Dunham; Siddharth Karkare; Richard Merluzzi; Matthew Nichols

doi:10.1063/1.3652758

Thermal emittance and response time of a cesium antimonide photocathode

Luca Cultrera, Ivan Bazarov, Adam Bartnik, Bruce Dunham, Siddharth Karkare, Richard Merluzzi, Matthew Nichols

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

42 Scopus citations

Abstract

Measurements of the intrinsic emittance and response time of a Cs ₃Sb photocathode are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. Photoemission response time is evaluated using a RF deflecting cavity synchronized to a picosecond laser pulse train. We find that Cs₃Sb has both small mean transverse energy, 160 10 meV at 532 nm laser wavelength, and a prompt response time (below the resolution of our measurement) making it a suitable material for high brightness electron photoinjectors.

Original language	English (US)
Article number	152110
Journal	Applied Physics Letters
Volume	99
Issue number	15
DOIs	https://doi.org/10.1063/1.3652758
State	Published - Oct 10 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Thermal emittance and response time of a cesium antimonide photocathode",

abstract = "Measurements of the intrinsic emittance and response time of a Cs 3Sb photocathode are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. Photoemission response time is evaluated using a RF deflecting cavity synchronized to a picosecond laser pulse train. We find that Cs3Sb has both small mean transverse energy, 160 10 meV at 532 nm laser wavelength, and a prompt response time (below the resolution of our measurement) making it a suitable material for high brightness electron photoinjectors.",

author = "Luca Cultrera and Ivan Bazarov and Adam Bartnik and Bruce Dunham and Siddharth Karkare and Richard Merluzzi and Matthew Nichols",

note = "Funding Information: This work is supported by NSF DMR-0807731. Two of the authors (S.K. and partially L.C.) are supported by DOE DE-SC0003965. One of the authors (M.N.) is supported by NSF PHY-0849885.",

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doi = "10.1063/1.3652758",

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T1 - Thermal emittance and response time of a cesium antimonide photocathode

AU - Cultrera, Luca

AU - Bazarov, Ivan

AU - Bartnik, Adam

AU - Dunham, Bruce

AU - Karkare, Siddharth

AU - Merluzzi, Richard

AU - Nichols, Matthew

N1 - Funding Information: This work is supported by NSF DMR-0807731. Two of the authors (S.K. and partially L.C.) are supported by DOE DE-SC0003965. One of the authors (M.N.) is supported by NSF PHY-0849885.

PY - 2011/10/10

Y1 - 2011/10/10

N2 - Measurements of the intrinsic emittance and response time of a Cs 3Sb photocathode are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. Photoemission response time is evaluated using a RF deflecting cavity synchronized to a picosecond laser pulse train. We find that Cs3Sb has both small mean transverse energy, 160 10 meV at 532 nm laser wavelength, and a prompt response time (below the resolution of our measurement) making it a suitable material for high brightness electron photoinjectors.

AB - Measurements of the intrinsic emittance and response time of a Cs 3Sb photocathode are presented. The emittance is obtained with a solenoid scan technique using a high voltage dc photoemission gun. Photoemission response time is evaluated using a RF deflecting cavity synchronized to a picosecond laser pulse train. We find that Cs3Sb has both small mean transverse energy, 160 10 meV at 532 nm laser wavelength, and a prompt response time (below the resolution of our measurement) making it a suitable material for high brightness electron photoinjectors.

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Thermal emittance and response time of a cesium antimonide photocathode

Abstract

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