UV Glossary
9-8
Part 1105120-03
E 2015 Nordson Corporation
vacuum UV
(100−200 nanometers)
The portion of the electromagnetic spectrum ranging between 100 and
200 nm. UVV does not transmit in air.
viscocity The state or quality of having a cohesive and sticky fluid consistency.
vitrification The act of changing pure opaque quartz into clear non-porous quartz
through a fusion process.
watt One joule per second.
watt density Refer to irradiance.
waveguide Directs microwaves toward the bulb in microwave UV systems.
wavelength The measured cycle length of a wave in the direction of propagation.
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