Physics - Gamma rays (data analysis, not assessed)
(done 08-01-03)

Let's not bother with the standard deviations.
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Experiment 1: not done
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Experiment 2

d (cm)	Act. (1/s)
10.0	56.8
11.0	41.318
13.1	28.455
14.0	25.269
17.0	13.729

- I proportional to 1/r²; R proportional to 1/((x+c)²)
- Graph x against R^(-½)
- The intersect of the y-axis = c = systematic error
- RESULT: c = 0.03 = 3 cm
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Experiment 3

d (mm)	Act. (1/s)
3.0	9.530
6.0	7.528
9.0	6.702

- I = ln^-constant*thickness ->
  lnI = -constant*d + lnI0
- Graph lnI against d -> slope = -constant
- RESULT: Constant = 58.67
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