Radio‐frequency discharge source for beams of atomic nitrogen and oxygen

Autor:	J. E. Pollard
Rok vydání:	1992
Předmět:	Materials science chemistry Passive cooling Torr Nozzle chemistry.chemical_element Supersonic speed Radio frequency Atomic physics Stagnation pressure Instrumentation Oxygen Helium
Zdroj:	Review of Scientific Instruments. 63:1771-1776
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1143811
Popis:	Supersonic beams of atomic nitrogen and oxygen are produced by an electrodeless rf discharge within a ceramic nozzle. Mixtures of N2 or O2 seeded in He are heated by 100 W at 38 MHz with a stagnation pressure of 200–250 Torr. The flux of reactive atoms is 1–3×1018 sr−1 s−1 with stream velocities of 3.2–3.6 km/s and a velocity spread of 20% FWHM. The source is relatively simple to construct, because it requires only passive cooling for operation in vacuum.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bfd0b2138898d3abf49cb6458f546c85 https://doi.org/10.1063/1.1143811 Zobrazit plný text záznamu