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Spikes are some obvious sharp increases that appear on the raw light curvesof High Energy X-ray telescope(HE) onboard Insight-HXMT, which could haveinfluences on the data products like energy and power spectra. They areconsidered to be fake triggers generated by large signals. In this paper, westudy the characteristic of the spikes and propose two methods to remove spikesfrom the raw data. According to the different influences on energy and powerspectra, the best parameters for removing the spikes is selected and used inthe Insight-HXMT data analysis software. The generation mechanism of spikes isalso studied using the backup HE detectors on ground and the spikes can bereduced by the electronic design.

The removal method and generation mechanism of spikes in Insight-HXMT/HE telescope