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Statistical variations in determining counting rates

VP6.4.2.1
Statistical variations in determining counting rates
Statistical variations in determining counting rates Measured and calculated Poisson distribution Histogram: h(n), curve: N · wB (n) (P6.4.2.1)
Statistical variations in determining counting rates

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Description

Using the CASSY system, the experiment P6.4.2.1 determines multiple pulse counts n triggered in a Geiger-Müller counter tube by radioactive radiation over a selectable gate time Δt. After a total of N counting runs, the frequencies h(n) are determined at which precisely n pulses were counted, and displayed as histograms. For comparision, the evaluation program calculates the mean value µ and the standard deviation

of the measured intensity distribution h(n) as well as the Poisson distribution wµ(N). For higher mean values μ the Poisson distribution develops into a Gaussian distribution.

Components of equipment sets

1 524013  8  Sensor-CASSY 2 LD
1 524220  4  CASSY Lab 2 LD
1 5240331  4  Geiger-Müller counter tube S LD
1 559835  8  Radioactive preparations, set of 3 LD
1 59121  4  Clip plug, large LD
1 59002  8  Small clip plug LD
2 53216  8  Connecting rod LD
2 30011  4  Saddle base LD
1 additionally required:
PC with Windows XP/Vista/7/8/10 (x86 or x64)
1 58707  4  * Tweeter LD
1 30011  4  * Saddle base LD
1 500421  4  * Connecting lead 19 A, 50 cm, red LD
1 500422  4  * Connecting lead 19 A, 50 cm, blue LD

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

Experiment Instructions

PDF (Description from CASSY Lab) PDF (Description from CASSY Lab) P6.4.2.1 Statistical variations in determining counting rates
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