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Statistical variations in determining counting rates /
Statistical variations in determining counting rates

Statistical variations in determining counting rates

VP6.4.2.1

Measured and calculated Poisson distribution Histogram: h(n), curve: N · wB (n) (P6.4.2.1)

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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 w_µ(N). For higher mean values μ the Poisson distribution develops into a Gaussian distribution.

Components of equipment sets

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

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

Experiment Instructions

PDF (Description from CASSY Lab)

P6.4.2.1 Statistical variations in determining counting rates

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Statistical variations in determining counting rates

Description

Components of equipment sets

Experiment Instructions

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