Gas detection using an integrating sphere as a multipass absorption cell

Eamonn Hawe; Gerard Dooly; Paul Chambers; Colin Fitzpatrick; Elfed Lewis

doi:10.1117/12.685113

Gas detection using an integrating sphere as a multipass absorption cell

Eamonn Hawe
, Gerard Dooly
, Paul Chambers
, Colin Fitzpatrick
, Elfed Lewis

University of Limerick

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The reduction of harmful environmental pollutants which can have adverse effects on human health and the development of sensors capable of monitoring low concentrations of these pollutants is a major source of concern for many researchers today. This paper describes a multipass absorption cell used to detect and monitor the presence of several gases in the ultra violet and visible regions. An integrating sphere with a highly reflective internal coating (over 99%) was adapted in order to input and output various gases. Sulphur dioxide was detected in the ultra violet region, ozone in the visible and nitrogen dioxide in both the ultra violet and visible. This paper will report the generation of effective optical path lengths of up to 70 cm using a 5 cm diameter integrating sphere. This results in an optical sensor capable of detecting sulphur dioxide concentrations as low as 10 ppm, nitrogen dioxide concentrations as low as 4 ppm and ozone levels of the order of 500 ppm.

Original language	English
Title of host publication	Photonic Applications for Aerospace, Transportation, and Harsh Environments
DOIs	https://doi.org/10.1117/12.685113
Publication status	Published - 2006
Event	Photonic Applications for Aerospace, Transportation, and Harsh Environments - Boston, MA, United States Duration: 3 Oct 2006 → 3 Oct 2006

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6379
ISSN (Print)	0277-786X

Conference

Conference	Photonic Applications for Aerospace, Transportation, and Harsh Environments
Country/Territory	United States
City	Boston, MA
Period	3/10/06 → 3/10/06

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Absorption spectroscopy
Integrating sphere
Nitrogen dioxide
Ozone
Sulphur dioxide

Access to Document

10.1117/12.685113

Cite this

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title = "Gas detection using an integrating sphere as a multipass absorption cell",

abstract = "The reduction of harmful environmental pollutants which can have adverse effects on human health and the development of sensors capable of monitoring low concentrations of these pollutants is a major source of concern for many researchers today. This paper describes a multipass absorption cell used to detect and monitor the presence of several gases in the ultra violet and visible regions. An integrating sphere with a highly reflective internal coating (over 99\%) was adapted in order to input and output various gases. Sulphur dioxide was detected in the ultra violet region, ozone in the visible and nitrogen dioxide in both the ultra violet and visible. This paper will report the generation of effective optical path lengths of up to 70 cm using a 5 cm diameter integrating sphere. This results in an optical sensor capable of detecting sulphur dioxide concentrations as low as 10 ppm, nitrogen dioxide concentrations as low as 4 ppm and ozone levels of the order of 500 ppm.",

keywords = "Absorption spectroscopy, Integrating sphere, Nitrogen dioxide, Ozone, Sulphur dioxide",

author = "Eamonn Hawe and Gerard Dooly and Paul Chambers and Colin Fitzpatrick and Elfed Lewis",

year = "2006",

doi = "10.1117/12.685113",

language = "English",

isbn = "0819464775",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Photonic Applications for Aerospace, Transportation, and Harsh Environments",

note = "Photonic Applications for Aerospace, Transportation, and Harsh Environments ; Conference date: 03-10-2006 Through 03-10-2006",

}

Hawe, E, Dooly, G, Chambers, P, Fitzpatrick, C & Lewis, E 2006, Gas detection using an integrating sphere as a multipass absorption cell. in Photonic Applications for Aerospace, Transportation, and Harsh Environments., 63790I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6379, Photonic Applications for Aerospace, Transportation, and Harsh Environments, Boston, MA, United States, 3/10/06. https://doi.org/10.1117/12.685113

Gas detection using an integrating sphere as a multipass absorption cell. / Hawe, Eamonn; Dooly, Gerard; Chambers, Paul et al.
Photonic Applications for Aerospace, Transportation, and Harsh Environments. 2006. 63790I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6379).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Gas detection using an integrating sphere as a multipass absorption cell

AU - Hawe, Eamonn

AU - Dooly, Gerard

AU - Chambers, Paul

AU - Fitzpatrick, Colin

AU - Lewis, Elfed

PY - 2006

Y1 - 2006

N2 - The reduction of harmful environmental pollutants which can have adverse effects on human health and the development of sensors capable of monitoring low concentrations of these pollutants is a major source of concern for many researchers today. This paper describes a multipass absorption cell used to detect and monitor the presence of several gases in the ultra violet and visible regions. An integrating sphere with a highly reflective internal coating (over 99%) was adapted in order to input and output various gases. Sulphur dioxide was detected in the ultra violet region, ozone in the visible and nitrogen dioxide in both the ultra violet and visible. This paper will report the generation of effective optical path lengths of up to 70 cm using a 5 cm diameter integrating sphere. This results in an optical sensor capable of detecting sulphur dioxide concentrations as low as 10 ppm, nitrogen dioxide concentrations as low as 4 ppm and ozone levels of the order of 500 ppm.

AB - The reduction of harmful environmental pollutants which can have adverse effects on human health and the development of sensors capable of monitoring low concentrations of these pollutants is a major source of concern for many researchers today. This paper describes a multipass absorption cell used to detect and monitor the presence of several gases in the ultra violet and visible regions. An integrating sphere with a highly reflective internal coating (over 99%) was adapted in order to input and output various gases. Sulphur dioxide was detected in the ultra violet region, ozone in the visible and nitrogen dioxide in both the ultra violet and visible. This paper will report the generation of effective optical path lengths of up to 70 cm using a 5 cm diameter integrating sphere. This results in an optical sensor capable of detecting sulphur dioxide concentrations as low as 10 ppm, nitrogen dioxide concentrations as low as 4 ppm and ozone levels of the order of 500 ppm.

KW - Absorption spectroscopy

KW - Integrating sphere

KW - Nitrogen dioxide

KW - Ozone

KW - Sulphur dioxide

UR - https://www.scopus.com/pages/publications/33846241233

U2 - 10.1117/12.685113

DO - 10.1117/12.685113

M3 - Conference contribution

AN - SCOPUS:33846241233

SN - 0819464775

SN - 9780819464774

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Photonic Applications for Aerospace, Transportation, and Harsh Environments

T2 - Photonic Applications for Aerospace, Transportation, and Harsh Environments

Y2 - 3 October 2006 through 3 October 2006

ER -

Gas detection using an integrating sphere as a multipass absorption cell

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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Cite this