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Statistical variations in determining counting rates
  1. Introductory experiments
  2. Atomic shell
  3. Radioactivity
  4. Quantum physics

Statistical variations in determining counting rates

P6.4.2.1
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
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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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

1 524 013  8  Sensor-CASSY 2 LD
1 524 220  4  CASSY Lab 2 LD
1 524 0331  4  Geiger-Müller counter tube S LD
1 559 835  8  Radioactive preparations, set of 3 LD
1 591 21  4  Clip plug, large LD
1 590 02  8  Small clip plug LD
2 532 16  8  Connecting rod LD
2 300 11  4  Saddle base LD
1 additionally required:
PC with Windows XP/Vista/7/8/10 (x86 or x64)
1 587 07  4  * Tweeter LD
1 300 11  4  * Saddle base LD
1 500 421  4  * Connecting lead 19 A, 50 cm, red LD
1 500 422  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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Physics
Chemistry
Biology
Technology

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