Investigation on the feasibility of using an Ulbricht sphere for the absolute calibration of an ICP or other source at specific wavelengths

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dc.contributor.authorVermaak A.P.
dc.contributor.authorVisser K.
dc.contributor.authorHamm F.M.
dc.contributor.authorZeeman P.B.
dc.date.accessioned2011-05-15T16:02:35Z
dc.date.available2011-05-15T16:02:35Z
dc.date.issued1981
dc.description.abstractThe short term and long term stability of an Ulbricht sphere was investigated by comparing its radiation at four Balmer wavelengths with those of two Sylvania projector lamps. A slight positive trend in the radiation intensity of the Ulbricht sphere was observed. This was attributed to a change in the molecular structure of the paint used to cover the inside of the sphere. However, the radiance varied less than 3% for 14 h burning time. The uncertainty in the primary calibration of the Tungsten standard lamp was given as ±3% in the wavelength range 400-600 nm. It was hence concluded that the sphere is suitable for spectral calibration purposes for a period of 14 h operational time without being recalibrated. © 1981.
dc.description.versionArticle
dc.identifier.citationSpectrochimica Acta Part B: Atomic Spectroscopy
dc.identifier.citation36
dc.identifier.citation2
dc.identifier.issn5848547
dc.identifier.urihttp://hdl.handle.net/10019.1/12541
dc.titleInvestigation on the feasibility of using an Ulbricht sphere for the absolute calibration of an ICP or other source at specific wavelengths
dc.typeArticle
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