3. Description of the QABrowser
Real-time Display and Waveforms
2012-10/4.3A
69
Barracuda & QABrowser Reference Manual
post-delay is necessary when measuring on units with some kind
of pre-pulse or for pulsed exposures.
The post delay can be set to: Off, 25 ms, 250 ms, 1 s, or Other…
(0-9999 ms).
The default value is set according to selected type of
measurement, see section Measurement Type Settings .
This setting makes it possible to define the trig source for the
electrometer module.
Available settings are:
· Individually, each detector starts to measure individually
when it detects a signal.
· MPD, the measurement of all parameters (all modules) start
when the MPD starts to measure.
Default value is always MPD when it is used. This is the
recommended trig source.
Here you can set the level used for irradiation time measurements.
"Trig level (time)" (TL) is normally set to 50 % of the peak
waveform (SPEAK), but can be set between 10 and 90 %. The
irradiation time is then calculated as the end time minus the start
time.
· The start time is the first time the signal goes above TL×S
PEAK
.
· The end time is the last time the signal goes below TL×S
PEAK
.
See example below.
This setting defines when Barracuda shall send
measured values to the QABrowser.
Four different alternatives are available:
· After exp., the QABrowser receives a new value
when the exposure terminates.
· Continuous, the Barracuda is continuously sending
data as long as radiation is detected. Displays in the
QABrowser are updated about every four seconds.
Typically used for Fluoroscopy.
· Timed, the user sets a measurement time. The user
To Next Page
Loading...
Need help?
General