Before starting DAQ one needs to specify the Acquisition type and number
of Events to be taken in the
"Analysis Setting" frame. The available
types are,
- Raw : data would be taken using random
triggers but no further calculations are performed! Number of
Events should be specified in the adjacent
" # of Events to Take" field
and the Acquisition will be stopped at that event number.
- Pedestal : data would be taken using
random triggers and Pedestal, Raw Noise, Common Mode, and
Common Mode Noise calculations would be performed in an iterative
way using "TT6 algorithm".
In this algorithm first 500 events are used for Pedestal and Noise
initialization and after that Pedestal, Noise.... are updated at
every 100th event. Number of Events should be specified in the
adjacent text field and the Acquisition will be stopped at that
event number. Number of Events specified should atleast be 600 so
that the algorithm can be used effectively.
- Ped + Calib : in this option in the first
part of the run Pedestal calculation is performed with random
trigger which would be followed by a
"Calibration Scan". The
scan is done with 96 time-steps in case of APV Peak Mode and
with 64 time steps in case of APV Deconvolution Mode. One needs
to activate the "Calibration"
option in the TSC TAB in the beginning of the run.
In the analysis (by software) the
"Internal Calibration" for APV
in disactivated during pedestal calculation and re-activated
during the calibration scan. The number of events in this case
indicates the events for Pedestal calculation.
During the scan 500 events are taken at each time-step.
- Ped + Laser : similar to the
"Ped + Calib" type, data will be
taken with Laser signal following Pedestal calculation with
random trigger. Here also, Number of Event to be specified
in the "text field" is for the Pedestal Calculation.
The Data can be saved in a simple text file. One should
select the "Save Raw Data"
Check Button before starting acquisiton, which would then enable
a "File Dialog" to choose file name for data storage. The file
will be opened during data acquisition and the data writing
would start. At the end of the run the file will be closed.
Raw data can ONLY be saved for the "Pedestal Run" !
Different actions during Data Acquisition are controlled in
the "Run Control Setting" frame.
The saving of data and hitograms are activated in the
"Storage" frame.
- Start DAQ : Once run type is selected the
"Start" button should be
clicked to start the data acquisition. The % of data taken would be
indicated in the "progress bar" and at it would show
"100%" at the end of the run. During
"Calibration Scan" the "progress bar"
will indicate the % of time-step.
- Stop DAQ : Data acquisition can be stopped
in the middle of a run (if needed) using
"Stop" button.
- Save Histograms : Once Data Acquisition
is finished one can store the histograms in a root file using
"Save Histograms" button.
The "Save Histograms"
button would activate a "Dialog" for the file name selection.
- Clear Histograms : After finishing a
run and before starting a new run the histograms should be cleared
using "Clear Histogram" button.
- Root File to XML : Different informations
Note : During Data Acquisition the histograms can be seen Online
in the "Online Tab". There are
different TAB's for each type of histogram.