
LS 6000 Scintillation System User’s Manual
PN 247971-F
6-16
Isotope/DPM Libraries
Setting Up A Quench Curve
entered for each isotope. If the dpm in the standards has already been half-life corrected,
enter today’s date.
14. Press the Down Cursor Arrow Key to display the menu shown in Figure 6.11. If you
want to set up more than one quench curve, highlight “Select Another Quench Curve”
and press SELECT. Repeat steps 7—14 for each quench curve. If a background quench
curve is selected, that curve is subtracted from each of the curves set up at this time.
If you are setting up quench curves for the same isotopes for single, dual, and triple
label, repeat steps 7—14. Select Dual and Triple Label as the
type of quench curve.
When the information for the desired quench curves is entered, proceed to step
15.
15. When you are ready to count the standards, highlight “Count Standards” and press
SELECT. The loading instructions are displayed in the Main Editing window. See Figure
6.12. The name and order of the isotopes to load into the instrument are shown.
16. Load the racks into the right side of the sample changer in the order shown. The
Calibrate Rack must be first rack or the standards will not be counted. Each set must be
Figure 6.12 Loading Sequence To Count Standards.
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