931040P / 1014
1. INTRODUCTION
7
1.4.2.2. Search Mode “Strip Charts”
Search Mode data are “strip charts” of count rate vs. elapsed time. These can be stored in the
ORTEC
.CHN
format; or in ANSI N42.42 format, formatted for an InstrumentType of
PersonalRadiationDetector.
The
.CHN
format is simpler than the
.SPC
format, and is described in the File Structure Manual.
The
.N42
file includes the sample description and a count rate log for the gamma strip chart; the
count rate log for the neutron strip chart (if the unit is so equipped); and GPS location log (if so
equipped).
The format filename of the search files is:
YYYY_MM_DD_HH_MM_SSStype
When saving in the ORTEC
.CHN
format, two files are saved for each search, one for the gamma
count and one for the neutron count; type is either G for the gamma-ray chart or N for the
neutron chart.
When saving in ANSI
.N42
format, only one file is generated; type is B indicating that it
contains both the gamma-ray chart and (for units so equipped) the neutron chart.
1.4.2.3. The Background File
The background file is saved in the Computer’s
\Program Files\DetectiveEX
folder as
background.chn
, and is overwritten each time the background is updated.
1.5. A Note About the DX and DX-100 User Interface
The illustrations and text in this manual reflect the user interface for the Detective-EX and
EX-100T models, which have neutron detectors. Note that because the DX/DX-100 do not have
neutron detectors, the user interface does not display neutron count-rate meters, dose alarm
controls, search controls, property pages, etc.
Summary of Contents for Detective-DX-100T
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