| The intrinsic efficiency relates the counts in the spectrum
to the number of gamma ray photons incident on the detector.
Intrinsic efficiency is defined as:
- Intrinsic efficiency = Absolute efficiency
´
(4p/W)
where W is the solid angle of the detector
seen from the actual source position.
-
 Move
the source (sphere) closer to the detector by dragging it down using the
mouse.
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