Uncertainty in net counts The background is measured and found to be 173 counts in 5 minutes. For one measurement using

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Uncertainty In Net Counts The Background Is Measured And Found To Be 173 Counts In 5 Minutes For One Measurement Using 1 (54.62 KiB) Viewed 30 times

Uncertainty in net counts The background is measured and found to be 173 counts in 5 minutes. For one measurement using the Sr90 source and a thick piece of polyethylene as the absorber, 113 counts are recorded for one minute. Determine the net counts N. What is the uncertainty in that value, AN? Answer: 34.6 X X Uncertainty in raw counts is the square root of the counts. To combine uncertainties when adding or subtracting, add the squares of the uncertainties together and take the square root.