Hey Kay,
yes I know, but the display didn't work for me, so I thought
maybe I need the cursor PVs.
That's why I asked for their meaning in my first mail.
But looking at the example I found my mistake, why my waveform was
not displayed correctly.
Cheers,
Florian
Am 29.04.2021 um 17:32 schrieb Kasemir,
Kay:
> from our pixel
sensor we just get a list of pixels that have seen a hit (row
and column address).
That's exactly
what the SNS beamline detectors report.
They send messages
which basically contain a time stamp, some detail about the
beam pulse, and then a list of detector pixels which where hit
and when exactly relative to the time stamp.
> We want to accumulate all hits and display them as 2d
histogram (x-axis beeing column, y axis row and content of
pixel = number of hits since start of the measurement).
Yes, we also need to to several things with that raw data.
It's streamed into files for later analysis, that's the basic
data acquisition job.
It's put into X/Y histograms so you can display in near real
time where the detector is hit, verify basic diffraction
patterns.
It's put into time-of-flight histograms, into histograms that
accumulate the energy or 'D-space' or ... of the hits.
But all that is done in IOCs, which then update an X/Y
histogram image in basic area detector format, or waveforms
for most of the rest. The display tool simply displays the
image or waveform, it doesn't do any of the computations.
-Kay
--
Ruhr-Universität Bochum
AG der Experimentalphysik I
Dr. Florian Feldbauer
NB 2/131 / Fach 125
Universitätsstr. 150
D-44801 Bochum
Office: NB 2/134
Phone: (+49)234 / 32-23563
Fax: (+49)234 / 32-14170
https://paluma.ruhr-uni-bochum.de
- References:
- Question about image widget in Phoebus Florian Feldbauer via Tech-talk
- Re: [EXTERNAL] Question about image widget in Phoebus Kasemir, Kay via Tech-talk
- RE: [EXTERNAL] Question about image widget in Phoebus Mark Rivers via Tech-talk
- Re: [EXTERNAL] Question about image widget in Phoebus Florian Feldbauer via Tech-talk
- Re: [EXTERNAL] Question about image widget in Phoebus Kasemir, Kay via Tech-talk
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