23 December 2016 Noise reduction in an optical emission spectrometer with rotating diffraction grating
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Proceedings Volume 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 101421Q (2016) https://doi.org/10.1117/12.2263230
Event: 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2016, Jasna, Slovakia
Abstract
The paper concerns the development of an optical emission spectrometer with a helium microwave rotating plasma as the excitation source which is an alternative to ICP spectrometers. In the new solution helium is used as the plasma and carrier gases, which helps to determine elements such as halogens and some non-metals. The new system should demonstrate decreased operating costs i.e. the flow of 1L He/min compared to about 15L Ar/min for ICP. Its spectral range is within 165 nm - 840 nm, sensitivity at the level of ppb and spectral resolution is equal to 0.01 nm. The system uses a set of two photomultipliers for VIS and UV regions. The entire spectrum is collected during a single rotation of the diffraction gratings. The paper describes the collection of algorithms developed to decrease noise and smooth spectral data.
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Dariusz Litwin, Stefan Sitarek, Anna Tyburska-Staniewska, Andrzej Ramsza, Piotr Wikliński, Henryk A. Kowalski, Grzegorz Mazur, Janusz Rzeszut, Łukasz Dałek, Jacek Galas, Marek Daszkiewicz, "Noise reduction in an optical emission spectrometer with rotating diffraction grating", Proc. SPIE 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 101421Q (23 December 2016); doi: 10.1117/12.2263230; https://doi.org/10.1117/12.2263230
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