RTI Barracuda User Manual

2. Description of the Barracuda
Hardware and Specifications
Barracuda & QABrowser Reference Manual
2012-10/4.3A
38
A600-MO52622 at standardised radiation qualities, measured using RTI radiation
quality code M1.
Radiation quality
Mean energy
air kerma (keV)
Air kerma measurement
PTB
ISO 4037
IEC 61267
HVL (mm Al)
Factor kQ
(Rel. RQR-M2)
MV20
13,53
0,22
1,0018
MV25
RQR-M1
14,89
0,28
1,0110
MV28
RQR-M2
15,44
0,31
1
MV30
RQR-M3
15,7
0,33
1,0196
MV35
RQR-M4
16,28
0,37
1,0100
MV40
RQR-M5
16,71
0,39
1,0022
MV50
RQR-M6
17,3
0,42
0,9964
MH20
17,29
0,48
1,0109
MH25
RQA-M1
18,61
0,59
0,9781
MH28
RQA-M2
19,27
0,63
0,9873
MH30
RQA-M3
19,75
0,67
0,9869
MH35
RQA-M4
20,96
0,75
0,9862
MH40
RQA-M5
22,12
0,82
0,9833
MH50
RQA-M6
24,15
0,95
0,9877
Note: These values are typical values measured at PTB in Germany in 2007.
2.6.4.4 Typical Other Detectors
Several different detectors, probes, and ion chambers from other manufacturers can
be connected to the electrometer module (EMM). The measuring range are different
between the EMMs with bias and the two models without. The table below gives typical
measuring ranges for the some commonly used types.
To get the ranges in other units it is useful to know that 1 Gy corresponds to 114.1 R,
1 Gy/s corresponds to 114.1 R/s which equals 6846 R/min and 411 kR/h.
Measuring range and inaccuracy
- Radcal 6M, Ionization chamber (typical sensitivity 200 nC/Gy)
Module type
Range
Inaccuracy
EMM-Bias/BiasB
Air kerma
Air kerma rate
250 nGy – 330 kGy
0.01 mGy/s – 40 Gy/s
±5 %
±5 % or ±1 µGy/s (for time > 20 ms)
EMM-BiasW
Air kerma
Air kerma rate
25 nGy – 330 kGy
1 µGy/s – 40 Gy/s
5 mR/min – 250 kR/min
±5 %
±5 % or ±100 nGy/s (for time > 20 ms)
±5 % or ±0.7 µR/min (for time > 20 ms)

RTI Barracuda Specifications

General

Brand	RTI
Model	Barracuda
Category	Medical Equipment
Language	English