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Ecounter test using 90Sr beta source
200
Left
180

160

140
Count

¡£¢

120

100

80

60

400204060

80

100

120

140

Position (cm)Ecounter test using 90Sr beta source
110
Right
100
9080

Count



70
60
50
40
30
20
0

20

4060

80
Position (cm)

100

120140Ecounter test using 90Sr beta source
85
Product80
75

Count

70
65
60
55
50
45
400204060

80

100

120

140

Position (cm)Ecounter test using 90Sr beta source

Countf(x) = 1.99670 * exp(-0.0068x)
Position

1020406080Position (cm)

100120140

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