A SYSTEM AND METHOD FOR DETECTING SINGLE ELEMENTAL EMISSION LINES IN A GLOW DISCHARGE

A system and method for detecting single elemental emission lines in a glow discharge. A glow discharge emits a light. At least a portion of the light travels to a bandpass filter. The bandpass filter is rotatable between a first angle and a second angle. The first angle is offset from the direction...

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Bibliographische Detailangaben
Hauptverfasser:	PALMGREN, ANDERS, NELSON, ANTHONY B, CHERAMY, JOSEPH J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A system and method for detecting single elemental emission lines in a glow discharge. A glow discharge emits a light. At least a portion of the light travels to a bandpass filter. The bandpass filter is rotatable between a first angle and a second angle. The first angle is offset from the direction of travel of the at least a portion of light traveling from the glow discharge such that an emission line of interest passes through the bandpass filter. The second angle blocks the emission line of interest and allows at least a portion of light traveling from the glow discharge that has a longer or a shorter wavelength than the emission line to pass through the bandpass filter.