Note: Calibration of EBT3 radiochromic film for measuring solar ultraviolet radiation

Journal Article · Wed Oct 01 00:00:00 EDT 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4898162· OSTI ID:22305921

Chun, S. L. ^[1]; Yu, P. K. N., ^[1]

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1. Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong (Hong Kong)

Solar (UVA + UVB) exposure was assessed using the Gafchromic EBT3 film. The coloration change was represented by the net reflective optical density (Net ROD). Through calibrations against a UV-tube lamp, operational relationships were obtained between Net ROD and the (UVA + UVB) exposures (in J cm⁻²p or J m⁻²). The useful range was from ~0.2 to ~30 J cm⁻². The uniformity of UV irradiation was crucial for an accurate calibration. For solar exposures ranging from 2 to 11 J cm⁻², the predicted Net ROD agreed with the recorded values within 9%, while the predicted exposures agreed with the recorded values within 15%.

• OSTI ID: 22305921
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 85; ISSN 0034-6748; ISSN RSINAK
• Publisher: Optical Society of America
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
COLORATION
FILMS
LIGHT BULBS
OPACITY
SOLAR RADIATION
ULTRAVIOLET RADIATION