Noise reduction in an optical emission spectrometer with rotating diffraction grating

Dariusz Litwin , Stefan Sitarek , Anna Tyburska-Staniewska , Andrzej Ramsza , Piotr Paweł Wikliński , Jacek Galas , Marek Daszkiewicz , Henryk Kowalski , Grzegorz Mazur , Janusz Rzeszut , Łukasz Dałek

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.
Author Dariusz Litwin - [Instytut Optyki Stosowanej w Warszawie]
Dariusz Litwin,,
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, Stefan Sitarek - [Instytut Optyki Stosowanej w Warszawie]
Stefan Sitarek,,
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, Anna Tyburska-Staniewska - [Instytut Optyki Stosowanej w Warszawie]
Anna Tyburska-Staniewska,,
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, Andrzej Ramsza - [Instytut Optyki Stosowanej w Warszawie]
Andrzej Ramsza,,
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, Piotr Paweł Wikliński
Piotr Paweł Wikliński,,
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, Jacek Galas - [Instytut Optyki Stosowanej w Warszawie]
Jacek Galas,,
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, Marek Daszkiewicz - [Instytut Optyki Stosowanej w Warszawie]
Marek Daszkiewicz,,
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, Henryk Kowalski (FEIT / IN)
Henryk Kowalski,,
- The Institute of Computer Science
, Grzegorz Mazur (FEIT / IN)
Grzegorz Mazur,,
- The Institute of Computer Science
, Janusz Rzeszut (FEIT / IN)
Janusz Rzeszut,,
- The Institute of Computer Science
et al.`
Pages101421Q-1-101421Q-7
Publication size in sheets0.5
Book Müllerová Jarmila, Senderáková Dagmar, Ladányi Libor, Scholtz Ľubomír (eds.): Proc. SPIE 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, Proceedings of SPIE: The International Society for Optical Engineering, 2016, SPIE
Keywords in Englishemission spectrometer, rotating diffraction grating, microwave plasma, rotating plasma, splines, interpolation.
DOIDOI:10.1117/12.2263230
URL http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2595398
Languageen angielski
File
101421Q.pdf 759.14 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 11-09-2019, BookChapterSeriesAndMatConfByConferenceseries
Ministerial score (2013-2016) = 15.0, 11-09-2019, BookChapterSeriesAndMatConfByConferenceseries
Publication indicators Scopus Citations = 1; WoS Citations = 2
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