Fluke Biomedical 10100AT - Manual (Page 10)

10100AT
Operators Manual
1-4
Electrometer Measurement Ranges
Table 1-1. Electrometer Measurement Ranges
Ion
Chamber
Units Effective
Range***
Threshold Resolution
Step Size
Units Effective
Range***
Threshold Resolution
Step Size
15 cc R 100
μ to
20
60
μ
1
μ Gy
1
μ to 0.2 .52
μ
0.01
μ
R/s 100
μ to
20
60
μ 1 μ Gy/s
1
μ to 0.2 .52
μ
0.01
μ
R/min 5 m to
1200
3.6 m 50
μ Gy/min
50
μ to
12
31.5
μ
0.5
μ
R/hr 100 m to
72 k
216 m 1 m Gy/hr 1 m to
720
1.89 m 0.01 m
R/frame** 2
μ to
333 m
1
μ 0.02 μ Gy/frame**
0.02
μ to
3.33m
.008
μ
0.2 n
150 cc R 10
μ to 2
6
μ 0.1 μ Gy
0.1
μ to
0.02
.052
μ 0.001 μ
R/s 10
μ to 2
6
μ 0.1 μ Gy/s
0.1
μ to
0.02
.052
μ 0.001 μ
R/min 0.5 m to
120
0.36 m 5
μ Gy/min
5
μ to 1.2
3.15
μ 0.05 μ
R/hr 10 m to
7.2 k
21.6 m 0.1 m Gy/hr 0.1 m to
72
.189 m 0.001 m
R/frame** 0.2
μ to
33 m
0.1
μ 0.002 μ Gy/frame** 0.002 μ
to 0.33 m
0.8 n 0.02 n
150 cc
VLDR
R/s 2
μ to 2*
N/A 0.1
μ Gy/s
0.02
μ to
0.02*
N/A 0.001
μ
R/min 0.1 m to
120*
N/A 5
μ Gy/min
1
μ to
1.2*
N/A 0.05
μ
R/hr 2 m to
7.2 k*
N/A 0.1 m Gy/hr 0.02 m to
72*
N/A 0.001 m
R/frame** 0.04
μ to
33 m*
N/A 0.002
μ Gy/frame** 0.4
n
0.33 m*
N/A 0.02 n
Electrical
Units
C 1 p to
100 n 0.5 pC 0.01 p
A 1 p to
100 n 250 fA 0.01 p
Values for ion chambers are calculated using nominal sensitivities:
15 cc: 2.4 x 10
8
R/C
150 cc: 2.4 x 10 7 R/C
* Very Low Dose Rate effective range at 5% resolution steps
** At 60 frames/s (1 to 120 frames/ selectable).
*** IEC 61674 effective range at 1% resolution steps