A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects

A novel fibre-optic UV illumination system for sulphuric acid (H(2)SO(4)) production has been developed. The illumination system described in this paper provides sufficient ultraviolet light (UV) power while causing practically no thermal effect on the aerosol chamber (temperature variation <0.00...

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Detalles Bibliográficos
Autores principales: Kupc, A, Kirkby, J, Onnela, A, Duplissy, J, Mathot, S, Danielczok, A, Walther, H, Minginette, P, Rondo, L, Ickes, L, Curtius, J, Wagner, P E, Amorim, A, Lima, J M, Ehrhart, S, Kurten, A
Lenguaje:eng
Publicado: 2011
Materias:
Detectors and Experimental Techniques
Other Subjects
Acceso en línea:https://dx.doi.org/10.1016/j.jaerosci.2011.05.001
http://cds.cern.ch/record/1399727
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author Kupc, A
Kirkby, J
Onnela, A
Duplissy, J
Mathot, S
Danielczok, A
Walther, H
Minginette, P
Rondo, L
Ickes, L
Curtius, J
Wagner, P E
Amorim, A
Lima, J M
Ehrhart, S
Kurten, A
author_facet Kupc, A
Kirkby, J
Onnela, A
Duplissy, J
Mathot, S
Danielczok, A
Walther, H
Minginette, P
Rondo, L
Ickes, L
Curtius, J
Wagner, P E
Amorim, A
Lima, J M
Ehrhart, S
Kurten, A
author_sort Kupc, A
collection CERN
description A novel fibre-optic UV illumination system for sulphuric acid (H(2)SO(4)) production has been developed. The illumination system described in this paper provides sufficient ultraviolet light (UV) power while causing practically no thermal effect on the aerosol chamber (temperature variation <0.005 degrees C at full UV illumination). A similar thermal stability has not been achieved in other comparable experimental set-ups so far. The spectrum provided by the fibre-optic UV system corresponds to the UVB region, illuminates the chamber in a reasonably uniform way and is comparable to the ground level actinic flux. The UV system has been installed for the Cosmics Leaving OUtdoor Droplets (CLOUD) chamber experiments at CERN. Precise, easily-adjustable and reproducible concentrations of H(2)SO(4) were generated by adjusting the UV light intensity. This paper gives an overview on the design of this new system as well as insights on its performance and application. (C) 2011 Elsevier Ltd. All rights reserved.
id cern-1399727
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13997272019-09-30T06:29:59Zdoi:10.1016/j.jaerosci.2011.05.001http://cds.cern.ch/record/1399727engKupc, AKirkby, JOnnela, ADuplissy, JMathot, SDanielczok, AWalther, HMinginette, PRondo, LIckes, LCurtius, JWagner, P EAmorim, ALima, J MEhrhart, SKurten, AA fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effectsDetectors and Experimental TechniquesOther SubjectsA novel fibre-optic UV illumination system for sulphuric acid (H(2)SO(4)) production has been developed. The illumination system described in this paper provides sufficient ultraviolet light (UV) power while causing practically no thermal effect on the aerosol chamber (temperature variation <0.005 degrees C at full UV illumination). A similar thermal stability has not been achieved in other comparable experimental set-ups so far. The spectrum provided by the fibre-optic UV system corresponds to the UVB region, illuminates the chamber in a reasonably uniform way and is comparable to the ground level actinic flux. The UV system has been installed for the Cosmics Leaving OUtdoor Droplets (CLOUD) chamber experiments at CERN. Precise, easily-adjustable and reproducible concentrations of H(2)SO(4) were generated by adjusting the UV light intensity. This paper gives an overview on the design of this new system as well as insights on its performance and application. (C) 2011 Elsevier Ltd. All rights reserved.oai:cds.cern.ch:13997272011
spellingShingle Detectors and Experimental Techniques
Other Subjects
Kupc, A
Kirkby, J
Onnela, A
Duplissy, J
Mathot, S
Danielczok, A
Walther, H
Minginette, P
Rondo, L
Ickes, L
Curtius, J
Wagner, P E
Amorim, A
Lima, J M
Ehrhart, S
Kurten, A
A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title_full A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title_fullStr A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title_full_unstemmed A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title_short A fibre-optic UV system for H$_{2}$SO$_{4}$ production in aerosol chambers causing minimal thermal effects
title_sort fibre-optic uv system for h$_{2}$so$_{4}$ production in aerosol chambers causing minimal thermal effects
topic Detectors and Experimental Techniques
Other Subjects
url https://dx.doi.org/10.1016/j.jaerosci.2011.05.001
http://cds.cern.ch/record/1399727
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