Alarm Set
• Example: At a background reading of 15
μ
R/h
<0.01%
31
μ
R/h
105%
7
<0.01%
29
μ
R/h
90%
6
<0.01%
26
μ
R/h
75%
5
0.01%
24
μ
R/h
60%
4
0.2%
22
μ
R/h
45%
3
2.6%
20
μ
R/h
30%
2
16.6%
17
μ
R/h
15%
1
Probability of
False Alarm
Alarm
Threshold
Value
Alarm % Above
Background
CF