Report on the Performance Characterisation of Caesium Telluride Photocathodes P5 to P8 Manufactured at CERN and later Characterised at Daresbury Laboratory

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Record Id	53837815
Title	Report on the Performance Characterisation of Caesium Telluride Photocathodes P5 to P8 Manufactured at CERN and later Characterised at Daresbury Laboratory
Contributors	Dr. LB Jones (STFC Daresbury Lab.), Mr. HM Churn (STFC Daresbury Lab.), Dr. TCQ Noakes (STFC Daresbury Lab.), Mr. LAJ Soomary, Mr. C Benjamin, Dr. H Panganti, Dr. E Chevallay, Dr. V Fedosseev, Dr. M Himmerlich
Abstract	In this report we present data on 4 caesium telluride cathodes synthesized at CERN and characterised at STFC Daresbury Laboratory. The characterisation involved measuring the surface composition of each cathode using X–ray Photoelectron Spectroscopy (XPS), surface roughness measurements with an in–vacuum Scanning Tunnelling Microscope (STM) and Quantum Efficiency (QE) measurements on the Multiprobe system. Performance analysis was carried out on the Transverse Energy Spread Spectrometer (TESS) at room and cryogenic temperatures, extracting the Mean Transverse Energy (MTE) of each cathode from their Transverse Energy Distribution Curves (TEDC).
Organisation	ASTeC , ASTeC-AP , STFC
Keywords	CsTe, photocathode, deposition, TESS, energy spread, TEDC, MTE, XPS
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Report	ASTEC-AP-2021-001. 2021.		2021 Jones - ASTe…n Collaboration .pdf	2021