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areaDetector / ADCore

The home of the core components of the EPICS areaDetector software. It includes base classes for drivers and code for all of the standard plugins.
https://areadetector.github.io/areaDetector
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Plugin for fitting curves #181

Closed hinxx closed 3 years ago

hinxx commented 8 years ago

Here at ESS we developed a AD plugin that can fit a curve - e.g. Gaussian with n-peaks - and are willing to share if community finds it useful.

Raw data comes from ROI plugin, 1xN. User can set amplitude, mu, sigma for each peak and baseline. User can setup st.cmd to have 1 .. n peaks to fit. Plugin utilizes library http://apps.jcns.fz-juelich.de/doku/sc/lmfit.

It comes with demo CSS OPI: untitled

mp49 commented 5 years ago

Hi,

I only just noticed this issue. I'm interested in this. Something like this may be useful for fitting neutron time-of-flight or d-space peaks.

How widely used is it at ESS?

hinxx commented 5 years ago

Currently it is in production on one-off system, on accelerator. It is expected to be used on upcoming non-invasion profile monitors as well. Main reason for low usega count is due to systems still being designed and developed, with only handful of them deployed.

rettigl commented 3 years ago

Hi, I've also found this issue just now. Is this plugin available somewhere, or could you send me the code? I would be very interested. This sounds like a good solution for monitoring beam positions with cameras, or is there something better for that?

MarkRivers commented 3 years ago

This sounds like a good solution for monitoring beam positions with cameras, or is there something better for that?

If you have a single beam then the centroid calculation in the NDPluginStats may work well for you. You can set a background pedestal to ignore.

hinxx commented 3 years ago

Is this plugin available somewhere, or could you send me the code?

I have not published the code anywhere. You can find a ZIP file here.