RTI Barracuda User Manual

2. Description of the Barracuda
Hardware and Specifications
Barracuda & QABrowser Reference Manual
2012-10/4.3A
34
Module type
Range
Inaccuracy
Typ. noise
Air kerma rate
(Dose rate)
(5 s moving average)
4 nGy/s – 76 mGy/s
460 nR/s – 8,7 R/s
26 µR/min – 520 R/min
1.6 mR/h – 31 kR/h
1 nGy/s – 76 mGy/s
±5 % or ±1 nGy/s
±5 % or ±100 nR/s
±5 % or ±6 µR/min
±5 % or ±360 µR/h
±5 % or ±250 pGy/s
±500 pGy/s
±100 pGy/s
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
Dose/pulse
1 nGy/pulse - 3 kGy/pulse
1
±5 %
-
Note 1: Max dose/pulse depends on the pulse length.
Note 2: For Kerma rate the specified Inaccuracy is valid for Irradiation times > 20 ms. Below that,
the inaccuracy of the time will also affect. This since the Kerma rate is calculated as the Kerma
(Dose) divided by the Irradiation time. Please see section Waveforms and Triggers for further
description.
Note 3: The standard calibration for the R100B is W/23 mm Al. This calibration was chosen since
the main use of the detector is to measure the dose to the image intensifier, after the phantom.
However, you can just as well use this probe for measurements of skin dose. The detector is very
linear in its energy response and will not be affected by a different filtration.
Pulses
Parameter
Range
Dose/pulse
1 nGy/pulse - 3 kGy/pulse
1
Pulse dose rate
Lower limit 10 µGy/s (70 mR/min), otherwise same
as for air kerma rate.
Min. output peak doserate
- High Sensitivity
- Low Sensitivity
Dose (min. pulse width)
0.23 µGy/s (4 ms) / 1.8 µGy/s (0.5 ms)
10 µGy/s (4 ms) / 73 µGy/s (0.5 ms)
Pulse rate
- Normally
0.5 – 100 Hz, resolution 0.5 Hz
Pulse width
4 ms - 2000 s
Duty cycle
5 - 95 %
Minimum pulse width
pulse width (min. peak doserate)
4 ms (0.23 µGy/s) / 0.5 ms (1.8 µGy/s)
Minimum ripple
(pulse top to bottom)
50 %
Irradiation time
1 – 65535 pulses, resolution 1 pulse
Note 1: Max dose/pulse depends on the pulse length.
102

RTI Barracuda Specifications

General

Brand	RTI
Model	Barracuda
Category	Medical Equipment
Language	English