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Efficiency For The Selected Detector And Isotopes
(See Figure 4.17.)
Figure 4.17. The Detector Efficiency Options screen.
NOTE: Total efficiency for an isotope is the isotope efficiency x the geometric efficiency. This
procedure allows the user to create a standard efficiency for an isotope. If you change the
geometry, you do not have to create a new standard efficiency. You would enter the new
geometry into the system and the system would calculate the total efficiency.
The <Efficiency> options allow the user to select the value that will be the efficiency used for
the isotope indicated in the isotope window. Each isotope must be set individually for an
isotope efficiency. Detector efficiency options include:
• Measure Efficiency
• Use Factory-Defined Value
• Enter Efficiency in Percent
WARNING: If the efficiency is less than 1.0 it must be entered in decimal format
(i.e., 0.1, 0.2, etc.).
AVERTISSEMENT: Si le rendement est inférieur à 1,0 elle doit être entrée au format
décimal (p. ex., 0,1, 0,2, etc.).
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