LUDLUM 70, Системное руководство

Страница: 18 / 35

Model 70 System Manual
Ludlum Measurements Inc.
11
May 2021
Nuclide ID Strength
Cs-137 15.7
Where the strength represents signal-to-noise ratio for a nuclide identified, the user
may consider the values as:
-
Below 10 as low confidence
-
Between 10 and 15 as moderate confidence
-
Above 15 as strong confidence
A maximum of up to five identified nuclides can be displayed. If there are more than five
nuclides identified, the user will be able to be scroll down.
If no identification can be made, the unit indicates a message of No Nuclides Found.
In case of presence of the nuclide not in the instrument’s database, the message of
Unknown will be displayed.
Setting Spectrum Nuclide ID Screen
If in the parameter Settings window of the Spectrum option is set to default Display: ON , the
accumulated gamma-spectrum will appear on the screen only upon a completed spectrum
acquisition. If the Spectrum option is set to
Display: Continuous , the gamma-spectrum
accumulation progress will be displayed continuously over accumulation time.
Saving Spectrum
1. The user can stop recording at any time by pressing CANCEL/SET (down arrow). After
stopping acquisition, the following messages on the screen’s bottom window will
appear:
Resume, Save, and Cancel .

Pressing the ENTER/SAVE to save the spectrum (the unit will
automatically assign the file name).
Save Spectrum - ENTER/SAVE
Cancel Save - Cancel/SET
Resume Spectrum -START