Modern Physics > Nuclear Physics > Radioactive Decay DCS# 7D30.08

COUNTING STATISTICS

histogram

APPARATUS
 
laptop with LabPro/LoggerPro interface 206
modified counter 214-02-B
geiger tube 214-02-B
wooden holder for tube and source
214-02-B
long half-life source 015A-lead cabinet


DESCRIPTION
The experiment file is set up to make 600 1-second counts and plot a histogram showing frequency vs count interval.  You can superimpose a poisson curve in Graphical Analysis to assess the agreement.
NOTES
Use "counting histogram" experiment file.

Have the counter set to the appropriate operating voltage for the geiger tube.

Use a sufficiently active source - the calibration source from the old survey meter works well.

Make sure the axes and bins are scaled appropriately.