5. Measurements with the Piranha System
Fluoroscopy and Pulsed Fluoroscopy
Piranha & QABrowser Reference Manual
2014-06/5.5C
108
5.4.3 HVL, Total Filtration, and Quick-HVL
HVL can be measured in a similar way as described for the radiography measurements
but the dose rate value is used instead.
1. Select Dose rate.
2. Tap Appl and select HVL.
3. Use the Hold button to store a reading
and move to next line when the displayed
value is stable.
Total Filtration and Quick-HVL
The total filtration is measured continuously when the Piranha is used under
fluoroscopy. The following pictures illustrates this excellent feature for the Piranha and
the Internal detector (shown for Barracuda MPD):
The fluoro is started and the total filtration is estimated and automatically displayed
during two seconds.