ORTEC Detective X, Руководство пользователя

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ORTEC
®
Detective
®
X Handheld Radioisotope Identifier 1107231N / 082020
46
4.7.1 Spectrum View
The Spectrum view (Figure 57) shows the histogram of the gamma-ray energy spectrum being acquired in
real time. To display the spectrum, simply tap the Spectrum radio button. This feature gives experienced
users more information about the nuclides present so more informed decisions can be made about the
material under investigation.
Figure 57. Entire Spectrum Displayed (Showing Marker Position and Channel Content)
The spectrum window has a vertical marker line, and the bottom of the screen displays the position of the
marker in energy (keV) and the number of counts in the marker channel. To move the marker to a different
location, tap the desired position. The marker will move, and the energy and counts-per-channel will update.
The operator can also tap and drag the marker left or right to a new location. These operations are typically
more practical when remotely controlling the instrument from a PC (see Section 4.11).
The spectrum display control buttons are just below the spectrum window. Their function is to change the
display in different ways for better interpretation of the spectrum.
The control button functions are:

Full/Zoom — In the expanded view, the Full button restores the display to 16K channels (see
Figure 57). In the full view, the Full button changes to Zoom and vice versa. When the Zoom button
is selected, it focuses the screen to the region surrounding the marker (see Figure 58). Tapping the
Full button returns to the 16K-channel spectrum view. In this way, the user can easily look at the
peaks in the spectrum in detail or move quickly from energy to energy in Full mode.
NOTE In cases where the administrator does not want operators to view the spectrum, the
Spectrum radio button can be disabled on the Password Settings page under Advanced
Setup (Section 4.17).