Fluorolog-3 v. 2.2 (10 Sep 2002)
Xenon Lamp Information
9-1
9: Xenon Lamp Information &
Record of Use Form
Xenon lamps typically are used in fluorescence instruments because they provide a
continuous output from 240 nm to 600 nm. In the Fluorolog
®
-3 spectrofluorometers,
the standard xenon lamp is ozone-free. The xenon-lamp spectrum exhibits a
characteristic peak around 467 nm, which can be used to indicate whether the excitation
spectrometer is properly calibrated.
As the xenon lamp ages, water Raman spectra have a progressively lower peak
intensity. During its lifetime, the lamp stabilizes at approximately 60% of its original
intensity. Keep a record of the time the lamp is in use on the form provided on the
following page. From this record, you will be able to determine when the lamp is near
the end of its lifetime. The maximum lifetime of the 450-W lamp is 2000 hours.
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