CAPINTEC, INC. CAPTUS
®
4000e
November 16 WIPE TESTS 8-31
Note that the Isotope Library measures peak efficiency using only the counts recorded in the
ROI that surrounds the primary photopeak, and does not use total counts. This allows the
peak finding program to better determine the activity of an isotope when multiple peaks or
isotopes are present. For this reason, the efficiency recorded in the Isotope Library will
always be lower than the full spectrum efficiency.