Motorola LS6000B-U Guía de usuario Pagina 108

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LS 6000 Scintillation System User’s Manual
PN 247971-F
6-6
Isotope/DPM Libraries
The Isotope Library
NOTE The windows determined by Automatic Setup are based on 1% spill values; not Emax values. When
the energy scale is set to KeV, the window settings are lower than the published Emax values for the
isotopes. Refer to Figure 6.2 for the predetermined window settings for the five isotopes permanently stored
in the library.
If you want to enter the window settings for the isotope, high-light “Manual Window
Setup”. Enter the lower and upper window settings, pressing [ENTER] between each
entry. Press PREVIOUS MENU to display the New Isotope Setup Menu.
7. If you wish to set up more than one isotope, repeat steps 1-6 for each isotope.
8. When all the desired isotopes are specified, highlight “Isotope Selection Complete” and
press SELECT. If the windows were set up manually, the Main Menu is displayed.
If Automatic Window Setup was selected for any of the isotopes entered, the loading
instructions shown in Figure 6.4 is displayed.
9. Load the Calibrate Rack. If the Calibrate Rack is not loaded, the samples will not be
counted. After the Calibrate Rack, load the Sample Rack containing a single vial for each
new isotope entered in step 3 above. The order of the vials must correspond to the order
in the list presented on the display.
Figure 6.4 Loading Instructions for New Isotope Setup.
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