ULTRAVIOLET-BEAM GENERATING DEVICE AND PHOSPHOR CHARACTERISTICS ESTIMATION SYSTEM

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PROBLEM TO BE SOLVED : To provide an inexpensive device capable of generating ultraviolet-beam with a wave length of 254 nm.SOLUTION : Rare gas 6 and mercury 7 are enclosed in an oblong ceramic tube 1 having quartz plates 2a, 2b mounted on both sides thereof. The ultraviolet-beam UV2 with a wave length of 254 nm having small spreading angle is generated by generating high frequency discharge between cylindrical electrodes 8a, 8b arranged on both end part of the ceramic tube.COPYRIGHT : (C)2006, JPO&NCIPI