Errors in determining broadband ultraviolet irradiances from spectral measurements

Parisi, A. V. and Wong, J. C. F. and Kimlin, M. G. and Meldrum, L. R. (1999) Errors in determining broadband ultraviolet irradiances from spectral measurements. Radiation Protection in Australasia, 16 (2). pp. 10-15. ISSN 1444-2752

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Abstract

The errors in determining the biologically effective and broadband UV irradiances from spectroradiometer measurements depend critically on procedures employed in the calibration process. A series of intercomparisons of two calibration standards and a spectroradiometer were undertaken in two laboratories. The near UV (320-400 nm) and shorter wavelength (280-320 nm) waveband irradiances of one standard obtained employing the other lamp for calibration agreed to within 3% and the erythemal irradiances agreed to within 5 to 6%. This was also the case if the lamps were swapped. There was no significant drift with time over five weeks in the measured standard lamp output. The variation of the spectroradiometer calibration during this period was less than 6%. It was observed that the calibration of the spectroradiometer varied by about 10% per degree of the temperature change in the temperature range between 22 and 25 degrees Celcius.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited with blanket permission of publisher.
Depositing User: Assoc Prof Alfio Parisi
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:37
Last Modified: 04 Nov 2013 05:18
Uncontrolled Keywords: spectroradiometry; ultraviolet radiation; non-ionizing; spectral; UV; spectradiometers; temperature; calibration
Fields of Research (FOR2008): 09 Engineering > 0903 Biomedical Engineering > 090303 Biomedical Instrumentation
02 Physical Sciences > 0299 Other Physical Sciences > 029904 Synchrotrons; Accelerators; Instruments and Techniques
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Socio-Economic Objective (SEO2008): C Society > 92 Health > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920117 Skin and Related Disorders
URI: http://eprints.usq.edu.au/id/eprint/1248

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