Compact radio‐frequency glow‐discharge atomic hydrogen beam source

Autor:	John A. B. Hodgson, Anthony A. Haasz
Rok vydání:	1991
Předmět:	Glow discharge Materials science Hydrogen Capillary action business.industry Atoms in molecules RF power amplifier chemistry.chemical_element Dissociation (chemistry) chemistry Vacuum chamber Atomic physics business Instrumentation Thermal energy
Zdroj:	Review of Scientific Instruments. 62:96-99
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1142289
Popis:	An atomic hydrogen beam source, compatible with ultrahigh vacuum and clean surface conditions, has been developed. Hydrogen atoms (H0) of thermal energy distribution are produced by dissociation of hydrogen molecules in a radio‐frequency (rf) glow discharge. The resulting mixture of atoms and molecules is allowed to flow from the discharge vessel to the vacuum test chamber through a capillary, resulting in the formation of a beam. Dissociation fractions [ 1/2 H0/(H2+ 1/2 H0)] of >0.5 and H0 fluxes of >2×1017 H0/s were achieved. Locating the rf power source adjacent to the discharge vessel resulted in a compact device which is easy to maintain and operate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d1197d7fee5cbabf626dff51c6da9475 https://doi.org/10.1063/1.1142289 Zobrazit plný text záznamu