A region of interest spanning a suspected peak contains gross counts
PHYSICS · Multi-part · Fermi University Physics · Scientific Practice & Experimental Methods · Nuclear Physics · Data analysis and model fitting in the laboratory
The Nucleus Resolved, Ch From a pulse to a number: detectors, resolution and what a spectrum establishes
Problem
A region of interest spanning a suspected peak contains 2450 gross counts. The background under the peak, estimated from side regions of the same total width as the peak region, is 1850 counts.
((a)) Calculate the net peak area.
((b)) Calculate its standard uncertainty using σnet=Ngross+Nbkg, and express this as a percentage of the net area.