Pulse Shape Processing to correct Pile up and Dead Time at High Count Rate by using Digital Spectroscopy Analyzer (DSA)

Adil M. Hussein

College of Science, University of Sulaimani

Rise time parameter in digital spectroscopy analyzer (DSA) is used to obtain a new method for pulse
shape processing which is used to correct dead time and pile up at high count rate. When the pile up rejecter
has been used the dead time did not eliminate so much, but as the new method has been used (rise time
parameter) the dead time decreased to its half value. The effect of rise time on the spectrum such as the
relationship between the rise time and each of width pulse shape, dead time, gauss ratio, peak to valley ratio
and peak to Compton ratio ,have been studied .
Keywords: - Gamma pulse shape processing, dead time and pile up optimization.

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