Clinical ultraviolet dosimetry with a CCD monochromator array spectroradiometer

Physics in Medicine and Biology
Andrew ColemanSusan Walker

Abstract

Single monochromator charge-coupled device (CCD) array spectroradiometers have the advantage of ease of use and speed compared with double grating instruments. Their inherently inferior stray-light rejection, however, can critically affect their accuracy in phototherapy and research-related dosimetry applications. This paper shows that without adequate correction the HR4000 (Ocean Optics Inc., Dunedin, USA) array device can overestimate the CIE erythema-weighted irradiance of common phototherapy sources and solar simulator beams by over 100%. A software stray-light correction (Ylianttila et al 2005 Photochem. Photobiol. 81 333-41), using the measured slit function of the HR4000, has been applied to spectra acquired from sources used in phototherapy and photobiology (PUVA, UV21, TL01 and solar simulator). The resulting corrected erythema-weighted irradiance measurements from the HR4000 are within 10% of those from a DM150 double grating spectroradiometer (Bentham Instruments Ltd, Reading, UK). A simple model is considered for combining estimates of measurement uncertainties. The importance of exposure bracketing to improve the dynamic range of the HR4000 is illustrated, along with the difficulty in making direct comparison of sp...Continue Reading

References

May 10, 2002·The British Journal of Dermatology·D K TaylorUNKNOWN British Photodermatology Group
Sep 17, 2002·Methods : a Companion to Methods in Enzymology·Graham I Harrison, Antony R Young
Jan 24, 2003·Physics in Medicine and Biology·Hannah Oliver, Harry Moseley
Mar 10, 2006·Applied Optics·Yuqin ZongYoshi Ohno

❮ Previous
Next ❯

Citations

Apr 3, 2016·The Review of Scientific Instruments·Jean-Marc Deniel
Sep 13, 2015·Radiation Protection Dosimetry·Katarzyna Anna BaczynskaMarina Khazova
Sep 12, 2016·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Aspasia Petri, Efthymios Karabetsos
Sep 10, 2010·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·A ColemanR Sarkany
Feb 26, 2016·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Claudia CavatortaEmanuele Pignoli
Nov 8, 2014·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·A Barlier-Salsi
Aug 15, 2014·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Luke L A PriceMarina Khazova
Nov 18, 2011·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Trevelyan Foy

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.