How to use DAQ for Argonne Beam Test

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How to use DAQ for Argonne Beam Test

• Tsunefumi Mizuno
• (mizuno_at_SLAC.Stanford.EDU)
• November 07, 2003

• History of changes
• Novebmer 07, 2003 First written by T. Mizuno

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DAQ system (1)

• Install sensors and analog modules in beam area,
  and others in monitor room (if possible).
• If there is significant energy deposition in any
  one of surrounding scintillators (greater than
  20keV), DAQ trigger is generated. We will see if
  there is hit in central scintillator or not in
  off-line analysis.

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DAQ System (2)

• Double-click the file C\ADLINK\PCIS-LVIEW\Test\T
  wo_card_data_acq_20031021.vi. Then, the
  following window pops up.
• Press white arrow in upper left and then press
  the start bottom at the center of the window.
  Then the DAQ starts.

• Default settings are as below. They are user
  adjustable but some other combination of
  parameters makes the DAQ unstable.
• sampling rate 5MHz.
• 1000points/card 250points/channel
• 230points after the trigger and 20 before the
  trigger.
• First 50 points are displayed and recorded.

display waveforms
Trigger conditions, user adjustable
For every 10 events the DAQ records data to a
disk and displays waveform of the last event in
the packet.
data file names (waveform data and peak data)
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ROOT analysis macro(1)

• copy data files (test.dat and test_p.dat) to
  c\root\PoGO
• start-gtcommand prompt if you have not done yet.
  
• Then type the following commands.
• cd c\root
• setup.bat
• cd PoGO
• Now you are ready to analyze data. Three root
  macros could be useful. (see following pages)
• Dont forget to rename data file name before
  copying next data files.

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ROOT analysis macro(2)
Type root QlHistogram.cc. Then 8 windows will
pop up and you can see peak voltage distributions.
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ROOT analysis macro(3)
Type root Analysis.cc and ROOT fits data with
gaussian plus background. You can (and have to)
specify some parameters in the macro.
void Analysis() // You can (and have to)
specify data file name. ifstream
data("test_p.dat") // You can (and have to)
specify the ACD channel. // Channel number is
1-4 for card 0 and 5-8 for card 1 int
channel(1) // You can (and have to) specify
the range of data used for the fitting. double
Min(1.7) double Max(4.5)
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ROOT analysis macro(4)
Type root Histogram.cc. Then 22 histograms will
pop up. h1-h8 deposit energy distribution of
each channel h9 total deposit energy h10 of
scintillators with hit h11-h18
depE1(2,3,..8)depE4, where depE4 is deposit
energy of center scint. h19 total deposit
energy h20 of scintillators with hit h21, h22
of events of each scintillator.
30degree
1
2
3
4
5
6
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• In h11-h22, following selection criteria are
  applied.
• of scint. with hit2
• depE4lt20keV
• 40keVlttotDepElt80keV
• Please modify Histogram.cc to change the criteria
  and calibration constants (voltagelt-gtenergy
  conversion factor).