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Old Version 97

changes.mady.by.user Igor Gaponenko

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New Version 98

changes.mady.by.user Mikhail Dubrovin

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  • 0-stage: the pixel amplitudes are averaged without any constrains for events from 0 to evts_stage1, the preliminary averaged and rms values are defined for each pixel at the end of this stage.
  • 1-stage: starting from event evts_stage1 the pixel data are collected only for abs(amplitude-average0) < gate_width1. At the end of this stage the preliminary averaged and rms values are defined for each pixel.
  • 2-stage: starting from the event evts_stage1 + evts_stage2 the pixel data are collected only for abs(amplitude-average1) < gate_width2. At the end of this stage the preliminary averaged and rms values are defined for each pixel and saved in the files specified by the avefile and rmsfile parameters, respectively.
    This 3-stage averaging algorithm eliminates large statistical fluctuations in the pixel amplitude spectrum.

If the parameter thr_rms_ADU is set ≤0 then threshold value is defined automatically using constrained averaging of pixel rms values in 3 iterations.  The threshold value is defined as mean+5*rms.

parameter

default value

description

source

DetInfo(:Opal1000)

input source of data

key

 

key for input data, for example, it might be "calibrated"

sumfile

""

out file with sum of amplitudes, saved if the name is not empty

avefile

""

out file with averaged amplitudes, saved if the name is not empty

rmsfile

""

out file with rms, saved if the name is not empty

maskfile""out file with pixel mask with 0/1-for bad/good pixels, saved if the name is not empty

hotpixfile

""

out file with hot pixel mask with 0-for good/hot or dead pixels, saved if the name is not empty

thr_rms_ADU

10000.

threshold on rms (in ADU); if =0 - use auto-evaluated threshold. If rms exceeds this threshold - pixel is hot.

thr_min_ADU

-100000.

threshold on minimal intensity (in ADU); if ave exceeds this threshold - pixel is good

thr_max_ADU

100000.

threshold on maximal intensity (in ADU); if ave exceeds this threshold - pixel is bad

evts_stage1

1000000

number of events before stage 1

evts_stage2

0

additional number of events before stage 2

gate_width1

0

gate_width for stage 1

gate_width2

0

gate_width for stage 2

print_bits

0

module verbosity:

  • =0 - print nothing
  • +1 - input pars
  • +2 - event record
  • +4 - beginning of 3 stages
  • +8 - processed statistics at the end of each stage
  • +16 - records for saved files
  • +32 - summary with keywords for parser
  • +64 - statistics of bad pixels

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