Temperature dependence of the electron and proton induced electron emission yield of Al

Autor:	Andreas Schinner, O. Benka, E. Steinbauer, M Steinbatz
Rok vydání:	2000
Předmět:	Nuclear and High Energy Physics Yield (engineering) Proton Chemistry Monte Carlo method Analytical chemistry Work function Electron Atmospheric temperature range Atomic physics Instrumentation Electron ionization Ion
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :910-914
ISSN:	0168-583X
DOI:	10.1016/s0168-583x(99)01136-2
Popis:	The electron emission yield was measured for the impact of 3 keV electrons and 2 MeV H+ ions on Al as a function of target temperature. A strong influence of the surface morphology was found. For annealed samples a linear decrease of the yield was observed for increasing temperature. In the temperature range 50–440°C the yield for electron impact decreased by 4%, for proton impact by 6%. In addition, the work function of Al was measured for 25°C and for 440°C. The dependence of the yield on the work function was investigated by Monte Carlo simulation of the electron emission process for electron and proton impact. The temperature dependence of the yield is discussed in terms of work function changes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::88cae2dcb45345a7c1e5e376f41d0c1d https://doi.org/10.1016/s0168-583x(99)01136-2 Zobrazit plný text záznamu Full Text from ScienceDirect