The Digital
Multi Channel Analyzer DT5780 represents the synthesis of
CAEN's long lasting experience in high voltage power supplies and in digital
acquisition systems. The device houses two HV channels with ±5 kV maximum
voltage and two 14 bit acquisition channels with 100 MS/s sampling rate. The
device allows through its internal logic to require coincidences and
anti‐coincidences between events triggered by the two acquisition channels.
In the present Application Note we report
the results obtained in internal tests of the Digital Multi Channel Analyzer
DT5780. We are going to show the resolution of the energy measurement of
gamma and X rays obtained with a HPGe detector. The wide spectrum of
energy available allows also to obtain a preliminary test of the linearity of
our MCA. We want underline that this test is preliminary and does not take into
account the nonlinearity of the HPGe detector and the preamplifier, and possible
dependencies on the event acquisition rate.
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