Measurements and Calculations (Introduction to Radiochemistry)
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Revision as of 14:42, 2 July 2012 by Hansvl@uio.no (talk | contribs)
Which detector did you use?
= Background
Note down the values from the background counting you started the day before.
Counting number Nbck= counts
Counting time tbck= sec
Counting speed = cps
Standard deviation <math>\frac{\sqrt{N_{bck}}}{t_{bck}}= cps