Since January 2006 the data acquisition was switched to digital
pulse processing using a Digital Gamma Finder (Pixie-4) system
from XIA with 20 input channels.
The preamp signal of a Ge or a Si detector is directly connected
to an input channel. Each input signal is digitized with a clock
frequency of 75 MHz, event time and pulse height are written as
events into a list file on disk.
We are interested in particle-γ coincidences.
evb program processes the list files of raw data and
creates event files for further analysis.
A coincidence is defined when the time difference between a
particle and a γ is less than 1.5 µs.
Other options include histogramming of singles spectra and
profile data, like
pps particles per second spectra and
fld field flip times.
Last modified: Thu Apr 23 16:52:14 EDT 2009