CHAPTER 5
82 PerkinElmer Life and Analytical Sciences
Radionuclide: Name
Clicking on the Name button brings up the Sample Nuclide window allowing you
to select a different sample nuclide.
Figure 5-3 Sample Nuclide Window
Count Mode
Select either Normal, High Sensitivity or Low Level from the drop-down list.
Depending on the TriCarb model you are using, the list of available count modes
will be different. Normal mode is the default and works well for most samples.
High sensitivity provides higher sensitivity as a result of the strict criteria used to
exclude background interference. Low Level provides the highest sensitivity
counting for low activity samples due to even stricter criteria for the exclusion of
background interference (with a minimal compromise in counting efficiency).
Quench Indicator
Quench indicators available are: tSIE, tSIE/AEC or SIS. These parameters
measure chemical quenching in your sample.
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