title: System for monitoring UV radiation level in phototherapy cabins in Poland.
abstract: BACKGROUND
  Ultraviolet phototherapy (UVP) is widely used in dermatological practice for the treatment of various skin diseases. Numerous studies support its beneficial curing effectiveness; however, overexposure to ultraviolet radiation can cause adverse health effects, such as sunburn reaction, erythema response, cataract, skin aging, etc. For these reasons, it is of special importance to monitor performance of UVP cabins using a calibration system to evaluate the UV doses incident upon the patient.
  
  
  METHODS
  A mechanized cabin control system (CCS) is proposed. It consists of radiometers with a wide and narrow field of view to estimate the body irradiation and to identify malfunctioning cabin tubes. Quality control and quality assurance procedures are developed to keep high accuracy of the calibration procedure. The CCS has been used in the examination of two different types of UVP cabins routinely working in Poland.
  
  
  RESULTS
  It allows precise calculation of UV doses and spatial variability of UV radiance inside the cabin, thus providing uncertainties of the doses assigned by medical staff. The CCS could potentially serve as a primary standard for monitoring various UVP cabins working in Poland.
  
  
  CONCLUSIONS
  The methodology developed to quantify UV doses in UVP cabins may be easily extended to any UV radiation source.
authors.affiliation: Department of Dermatology, Medical University of Lodz, Lodz, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Narbutt
authors.affiliation: Department of Biology and Environmental Study, Poznan University of Medical Sciences, Poznan, Poland.
authors.forename: Mariola
authors.initials: M
authors.lastname: Pawlaczyk
authors.affiliation: University of Social Sciences, Lodz, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Sysa-Jędrzejowska
authors.affiliation: Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.
authors.forename: Janusz W
authors.initials: JW
authors.lastname: Krzyścin
authors.affiliation: Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Sobolewski
authors.affiliation: Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.
authors.forename: Bonawentura
authors.initials: B
authors.lastname: Rajewska-Więch
authors.affiliation: Department of Dermatology, Medical University of Lodz, Lodz, Poland.
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Lesiak
keywords: UV radiation; dose calibration; medical cabinet; phototherapy