MariachiFileFormats

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Contents

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File Formats for Mariachi

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Scintillator Detector Formats

For the scintillator detectors, we are talking about the output files for the Mariachi DAQ Labview program.

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Directory layout

Labview should be configured to write data in the home directory of the mariachi account on the local system. This account should be an unprivileged UNIX account. The directory structure is show below, along with file name formats. The idea is to divide data into scintillator detector (sd) areas and radio areas, and also do limit the number of files in a single directory by limiting each to one year.

/home/mariachi/data/sd/
<year>/
counts-<year><month><day>.txt
timestamps-<year><month><day>.txt
gps_error-<year><month><day>.txt
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Counts Per Minute

Counts per each minute for different kinds of events.

  • Filename: counts-<year><month><day>.txt
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Version 1.0
  • Internal Format, comma separated fields:
Item Format Example
line format version <lf> cts1.0
date <year><month><day>,<hours><minutes><secs>.<decimal fraction of seconds> 20070123,135523.12345678
singles by detector <s1>,<s2><s3>,<s4>,<s5> 250,245,247,222,190
twofolds <c1> 138
threefolds <t1>,<t2>,<t3> 23,31,6
fourfolds <f1> 3
fivefold <v1> 2
  • Full example: 
 cts1.0,20070123,135523.12436587,310,370,390,250,410,49,2,0,1,0,0
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GPS Timestamps

This contains information on the precise time of 4-fold and 5-fold events.

  • Filename: timestamps-<year><month><day>.txt
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Version 1.0
  • Internal Format, comma separated fields:
Item Format Example
line format version <lf> gts1.0
date <year><month><day>,<hours><minutes><secs>.<decimal fraction of seconds> 20070123,135523.12345678
fold-ness <f1> 4 or 5
positive detector bitmap <b1> e.g. 10111 for hits on all but detector #2.
  • Full example: 
 gts1.0,20070123,135523.12436587,4,10111
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GPS Errors

This contains error information copied directly from GPS device. Its format is determined largely by what the device provides. This section should be used to document relevant error codes and interpretations.

  • Filename: gps_error-<year><month><day>.txt
  • Internal Format: Unknown -- depends on hardware.
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