RTI Barracuda - Page 25

2. Description of the Barracuda
Hardware and Specifications
2012-10/4.3A
21
Barracuda & QABrowser Reference Manual
Measuring range and inaccuracy
Radiography, Fluoroscopy, and Dental
Parameter
BQ
Range
Inaccuracy
Resolution
kVp (standard)
W / 3 mm Al
R1
35 – 155 kV
±1.5 %
4 digits
(10 or 100 V)
kVp dental
W / 3 mm Al
R1
35 – 105 kV
±1.5 %
As above
Irradiation time
0.1 ms – 2000 s
1 – 65535 pulses
±1 % or ±0.5 ms
±1 pulse
0.5 ms
1 pulse
Air kerma (Dose)
2
15 nGy – 1000 Gy
(2 µR – 100 kR)
±5 %
–
Air kerma rate
2
(Dose rate)
-Overall
15 nGy/s – 450 mGy/s
3
1.7 µR/s – 50 R/s
0.1 mR/min – 3000
R/min
±5 % or ±7 nGy/s
±5 % or ±0.8 µR/s
±5 % or ±0.05
mR/min
(for Irr. time >20 ms)
Typ. noise:
3 nGy/s
-Free run
-High Sensitivity
-Low Sensitivity
15 nGy/s – 12 mGy/s
2
150 nGy/s – 12 mGy/s
2
25 µGy/s – 450 mGy/s
2
±5 % or ±7 nGy/s
±5 % or ±7 nGy/s
±5 % or ±0.1 µGy/s
Typ. noise:
3 nGy/s
Estimated total
filtration
1.5 – 38 mm Al
(50 – 150 kV)
±10 % or ±0.3 mm
(60 – 120 kV,
HF/DC)
2 digits
(0.1 or 1 mm)
Quick-HVL
1.2 – 14 mm Al
4
(50 – 150 kV)
±10 % or ±0.2 mm
(60 – 120 kV,
HF/DC)
1
3 digits
(0.01 or 0.1 mm)
Note 1: This is valid for a tube with 13° anode angle. The HVL for a 22° anode is typically 0,5 mm
lower (@ 80 kV, 3 mm TF).
Note 2: All kerma and kerma rate ranges, inaccuracy, and resolution figures are valid for product
version 2 and higher of the MPD.
Note 3: The Kerma rate is calculated as the Kerma (Dose) divided by the Irradiation time. See
also Waveforms and Triggers .
Note 4: The HVL range is valid if also the TF is within its specified range. For high TF at high kV
the HVL range may be limited by this.
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