Measurement of the photoelectron-collection efficiency in noble gases and methane

The photoelectron-collection efficiency from photocathodes in noble gases and methane is experimentally investigated. The ratio between the number of transmitted photoelectrons in the gas media and in vacuum is determined as a function of the applied reduced electric field E/ p, where p is the gas p...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 581; no. 1; pp. 190 - 193
Main Authors Coelho, L.C.C., Ferreira, H.M.N.B.L., Lopes, J.A.M., Dias, T.H.V.T., Ferreira, L.F.R., dos Santos, J.M.F., Breskin, A., Chechik, R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 21.10.2007
Subjects
Electron backscattering
Methane
Noble gases
Photoemission
Noble gases
Methane
29.40.Mc
79.60.Bm
Electron backscattering
Photoemission
51.10.+y
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Summary:The photoelectron-collection efficiency from photocathodes in noble gases and methane is experimentally investigated. The ratio between the number of transmitted photoelectrons in the gas media and in vacuum is determined as a function of the applied reduced electric field E/ p, where p is the gas pressure. Results are presented for He, Ne, Ar, Xe, Kr and CH 4.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2007.07.075