RTI Piranha, Reference Manual, Page: 32 / 181

2. Description of the Piranha
Hardware and Specifications
Piranha & QABrowser Reference Manual 2014-06/5.5C
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Note : Note: These values are typical values measured at PTB in Germany in 2009.
- Piranha MAS-1 Probe, Invasive mAs probe (sensitivity 1 nC/mAs)
Module type Range Inaccuracy Typ. noise
Tube charge 0.001 mAs – ±1 % (for time > 0.1 ms)
Tube current 0.1 – 3000 mA ±1 % or ±10 µA (for time >100 ms) ±1.5 µA
Pulse tube
current
Lower limit 1 mA,
otherwise same as
tube current.
Time
1
0.1 ms – 34000 s
1 – 65535 pulses ±1 % or ±0.5 ms
±1 pulse Resolution
0.5 ms
Note 1 : When the Piranha internal detector is used simultaneously, the default mode of operation
is to use the internal detector for time measurement.
Note 2 : The tube current is calculated as the tube charge divided by the time. See also Waveforms
and Triggers .
- Piranha MAS-2 Probe, Non-invasive mAs probe (sensitivity 1 nC/mAs)
Module type Range Inaccuracy Typ. noise
Tube charge
0.1 mAs – ±5 % (for time > 0.1 ms)
Tube current 10 – 4000 mA ±5 % or ±2 mA (for time > 20 ms)
(±3 % at 250 mA) ±1 mA
Pulse tube
current Lower limit 50 mA,
otherwise same as
tube current.
Time
1
0.1 ms – 34000 s
1 – 65535 pulses ±1 % or ±0.5 ms
±1 pulse Resolution
0.5 ms
Note 1 : See also note 1 and 2 for the Piranha MAS-1.
- Piranha Light Probe, Light detector (typical sensitivity 670 pA/nit or 200 pA/lx)
Module type Range Inaccuracy Typ. noise
Luminance
Illuminance 0.003 – 72000 cd/m²
0.001 – 24000 lx ±5 % or ±0.6 mcd/m²
±5 % or ±0.2 mlx ±0.3 mcd/m²
±0.1 mlx
- CT-DP, CT Dose Profiler (typical sensitivity 3.6 µC/Gym)
Module type Range Inaccuracy Typ. noise
Air kerma (Dose)
Air kerma rate
(Dose rate)
1,5 nGy – 22 kGy
160 nR – 2.5 MR
60 nGy/s – 1.1 Gy/s
6.8 µR/s – 125 R/s
0.4 mR/min – 7500 R/min
24 mR/h – 450 kR/h
±5 %
±5 %
±5 % or ±15 nGy/s
±5 % or ±1.6 µR/s
±5 % or ±0.1 mR/min
±5 % or ±6 mR/h
±8 nGy/s
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