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Title: High efficiency fluorescent excimer lamps: An alternative to mercury based UVC lamps

A high efficiency xenon excimer lamp radiating at 172 nm, with an internal phosphor coating shifting to UVC has been demonstrated, showing the feasibility of a cost effective alternative to UVC mercury lamps. Fluorescent lamps so designed can be fabricated in various geometries with high efficiency. Unlike other xenon excimer lamps based on dielectric barrier discharges this new system is highly compatible with existing and proposed phosphors as it operates in an inert gas environment at modest temperature and is subject only to 172 nm primary radiation. Using a lamp coated with a UVC phosphor we have demonstrated the feasibility of germicidal and curing lamps with 40% energy conversion efficiency and high power density. These lamps are rapidly switchable, have long projected lifetimes and are compatible with dimmers.
Authors:
 [1] ;  [2] ;  [1] ;  [2]
  1. UV Solutions Inc, Newark, New Jersey 07103 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22251248
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DIELECTRIC MATERIALS; DIFFUSION BARRIERS; ENERGY CONVERSION; FLUORESCENCE; FLUORESCENT LAMPS; MERCURY; PHOSPHORS; POWER DENSITY; VENTILATION BARRIERS; XENON