ORTEC
®
Detective-EX/DX
®
-100T Portable HPGe Spectrometer — User’s Manual
931040P / 1014
60
Figure 61. Set the Minimum
Background Acquisition Time.
Figure 62. Identification Mode
Setup.
NOTE
For optimum counting statistics, we strongly
recommend a minimum 30-minute back-
ground acquisition (the longer, the better).
However, the background settings screen also
allows you to set a minimum interval of 1, 5,
or 15 minutes.
5.2.3. Identify (Identification Mode) Settings
This dialog (Fig. 62) lets you set a counting preset;
choose to display radionuclides by category (e.g.,
Industrial, NORM, Medical, etc.) or by radioisotope
name; enable/disable the expert LCX identification
mode, and turn color-coded IDs on/off.
5.2.3.1. Real Time Preset
To set a preset acquisition time for Identification Mode,
tap in the field to open the soft key-board, enter a count
time from 1 second to 9999999 seconds, and tap Set.
In preset mode, the Pause/Continue button allows you to extend the count. For more informa-
tion and an example, see Section 3.2.2.
5.2.3.2. ID Display Mode
Choose whether to display identifications by radio-
isotope name (ANSI); or by category (Classify), for
instance Industrial, Medical, NORM-Th. Figures 25
and 26 on page 32 compare how the same detected
radionuclides are displayed in ANSI mode and
Classify mode.
See also Chapter 4, which lists all Identification
Mode messages, their threat/suspect/innocent status,
and Classify mode category.
5.2.3.3. LCX (Low-Confidence Expert) ID Mode
The LCX identification mode displays suspected threat
alarms and identifications at an approximately 30% lower
confidence level than the normal mode. This results in
more hits on suspected threat nuclides. Although detection
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