IES LM-93-22

Approved Method: Optical and Electrical Measurements of Far UV-C Excimer Sources

Illuminating Engineering Society , 10/24/2022

Publisher: IES

File Format: PDF

$25.00$50.00


The ultraviolet-C (UV-C) spectrum is typically defined as being from 100 nm to 280 nm. This spectrum can be further divided into other defined UV-C ranges, such as vacuum-UV (100 nm to 200 nm) and far UV-C (200 nm to 230 nm). While “far UV-C” is not officially defined, this is the meaning of the term as used in this document.

The use of far UV-C optical radiation sources in various disinfection applications is a subject of increasing interest. The main reason is that this region of the UV spectrum (200 nm to 230 nm) offers a high rate of pathogen reduction, with much lower photobiological risk than that of longer-wavelength UV devices, and without the problems associated with ozone generation at shorter UV wavelengths.

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