Reflection of UVC wavelengths from common materials during surface UV ...
However more caution is needed when using unfiltered KrCl* devices and conventional UV 254 nm light . This study provides urgently needed data on UV reflection of common materials and guidance for safety assessments of UVC devices for surface disinfection in occupied spaces.
These factors can influence the absorption, transmission, and reflection characteristics of UV light . Overall, while water can absorb a significant amount of UV light , particularly in the UVA and UVB ranges, some UV light can be transmitted through the water, and a small portion can be reflected off the water's surface.
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The general trend of the spectral reflection curve of the rolled material is similar to that of the cast block, and it is assumed would coincide with that of the highly polished surface, if scattering of the light were eliminated. The ultra-violet reflecting power of aluminum compares favorably
Ultraviolet light is electromagnetic radiation with wavelengths shorter than those of visible light , typically ranging from about 100 to 400 nanometers. The UV reflectance of a material is an important property, particularly in applications where exposure to ultraviolet radiation is a concern.
UV reflective surfaces
A very good example of this is the phosphorescent coating that you find inside fluorescent lights . These coatings reflect visible light very efficiently (hence appear white to our eyes). But they absorb UV and re-emit it as visible light (this is essentially what happens when you switch the light on).
In summary, this study provides needed data on UV reflection of commonly used materials and reports the relative safety of UVC devices for surface disinfection in occupied spaces, considering both the UV exposure to reflected irradiation and ozone generation.
PDF Comparison of Reflective Properties of Materials Exposed to Ultraviolet ...
The reflective properties of the internal walls of a disinfection chamber are therefore crucial for effective UV-C radiation distribution. Surface reflections are described as either diffuse or specular, where diffuse reflection redirects incoming radiation randomly and uniformly in all directions, whereas specular reflection redirects incoming radiation in a single direction as determined by ...
8/25/21 - Addendum: NIST has just published an excellent article about testing UVC reflection of different materials at LINK in the Journal of Research of the National Institute of Standards and Technology.
PDF Reflection of UVC wavelengths from common materials during surface UV ...
Reflection of UVC wavelengths from common materials during surface UV disinfection: Assessment of human UV exposure and ozone generation Ben Ma a, Sam Burke-Bevis a, Luke Tiefel a, Jennifer Rosen b, Ben Feeney b, Karl G. Linden a,⁎
