RTI Barracuda - Page 39

2. Description of the Barracuda
Hardware and Specifications
2012-10/4.3A
35
Barracuda & QABrowser Reference Manual
The table below shows the typical response for the R100B at standardised radiation
qualities, measured using RTI radiation quality code R1 (W/Al).
Radiation quality
Mean energy
air kerma
(keV)
Total
Filtration
(mm Al)
Air kerma measurement
PTB
ISO 4037
IEC 61267
HVL
(mm Al)
Factor kQ
(Rel. RQR 5)
DV40
RQR 2
26,38
2,49
1,42
1,087
DV50
RQR 3
29,0
2,46
1,77
1,044
DV60
RQR 4
32,0
2,68
2,19
1,013
DV70
RQR 5
34,8
2,83
2,57
1
DV80
RQR 6
37,8
2,99
3,01
0,993
DV90
RQR 7
41,0
3,18
3,48
0,988
DV100
RQR 8
44,2
3,36
3,96
0,986
DV120
RQR 9
50,8
3,73
5,00
0,986
DV150
RQR 10
61,2
4,38
6,55
1,002
Note: Note: These values are typical values measured at PTB in Germany in 2009.
- R100, Dose detector (typical sensitivity -55 µC/Gy)
Module type
Range
Inaccuracy
Typ. noise
EMM-1Ch/2Ch
Air kerma (Dose)
Air kerma rate
(Dose rate)
1 nGy – 1.5 kGy
0.12 µR – 170 kR
0.040 µGy/s – 160 mGy/s
4.6 µR/s – 18 R/s
0.26 mR/min – 1.1 kR/min
±5 %
±5 % or ±0.01 µGy/s
±5 % or ±1 µR/s
±5 % or ±0.06 mR/min
±5 nGy/s
EMM-Bias/BiasB
Air kerma (Dose)
Air kerma rate
(Dose rate)
1 nGy – 1.5 kGy
0.12 µR – 170 kR
0.040 µGy/s – 76 mGy/s
4.6 µR/s – 8,7 R/s
0.26 mR/min – 520 R/min
±5 %
±5 % or ±0.01 µGy/s
±5 % or ±1 µR/s
±5 % or ±0.06 mR/min
±5 nGy/s
EMM-BiasW
N/A
N/A
N/A
Note 1: For Kerma rate the specified Inaccuracy is valid for Irradiation times > 20 ms. See Note
for R100B above.
- MAS-1B, Invasive mAs probe (sensitivity 1 nC/mAs)
Module type
Range
Inaccuracy
Typ. noise
EMM-1Ch/2Ch/
Bias/BiasB/BiasW
Tube charge
Tube current
Pulse tube current
0.001 mAs –
0.1 – 3000 mA
Lower limit 1 mA,
otherwise same as for tube
±1 %
±1 % or ±0.01 mA
±1.5 µA