Enter the full width at maximum and the photo peak into the calculator to determine the energy resolution.
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Energy Resolution Formula
The following formula is used to calculate an energy resolution.
ER = FWHM * 100 / PP
- Where ER is the energy resolution (%)
- FWHM is the full width half maximum
- PP is the photo peak
To calculate the energy resolution, multiply the full width half maximum value by 100, then divide by the photo peak.
What is Energy Resolution?
Definition:
Energy resolution is a measure of the percent of energy of incoming photons on an imaging device.
How to calculate Energy Resolution?
Example Problem:
The following example outlines how to calculate an energy resolution.
First, determine the FWHM of a specific energy. in this example, the FWH is found to be 8%.
Next, determine the photo peak. For this example, the photo peak is 140KeV.
Finally, calculate the energy resolution using the formula above:
%ER = FWHM * 100 / PP
%ER = 8 * 100 / 140
%ER = 5.714%
