The illustration below shows a typical use of Background, Reference and Signal for computations such as
%Absorptance or %Transmittance:
For example, the % Absorption will be computed as:
100 x (1 - (Signal - Background) / Reference)
The default data type (used when capturing data and having not explicitly made a selection from the Data Type dialog
box) is counts.
If any data type other than counts or counts (Bg Corrected) are selected, user will have to perform Take Background
and Take Reference (in that order) before performing Take Signal.
Pre Acquisition Setup - Data