Sources for the PerkinElmer Luminescence Spectrometers are pulsed
Xenon discharge lamps (7.3 W average power at 50 Hz). This reliable
source produces very little ozone or heat but provides remarkable
sensitivity due to its peak intensity exceeding 1 KW! On most LS
Series instruments the detector electronics are controlled so that
delay and gate time can be varied to measure phosphorescence
between source pulses.