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The applicability of LaBr3:Ce detectors for high count rate {\gamma}-rayspectroscopy is investigated. A 3"x3" LaBr3:Ce detector is used in a test setupwith radioactive sources to study the dependence of energy resolution and photopeak efficiency on the overall count rate in the detector. Digitized traceswere recorded using a 500 MHz FADC and analysed with digital signal processingmethods. In addition to standard techniques a pile-up correction method isapplied to the data in order to further improve the high-rate capabilities andto reduce the losses in efficiency due to signal pile-up. It is shown, that{\gamma}-ray spectroscopy can be performed with high resolution at count rateseven above 1 MHz and that the performance can be enhanced in the region between500 kHz and 10 MHz by using pile-up correction techniques.

High count rate {\gamma}-ray spectroscopy with LaBr3:Ce scintillation detectors