[Nexus] NXxas questions

[Collins, Steve (DLSLtd,RAL,SCI)]

Hi Dylan,

This is something that we want to look at quite soon at Diamond, so it would be good to have a discussion.

My initial thought is that is should be quite straightforward if it is done as something that looks like a multidimentional scan, i.e. scan over energy and Stokes, where energy is ‘incident_energy’ in NXbeam, and Stokes is ‘incident_polarization_stokes’ in the NXbeam from NXmx.

Does this capture what you need? It would be good to consider some use cases.

Regards,
Steve




From: NeXus <nexus-bounces at shadow.nd.rl.ac.uk> On Behalf Of Dylan McReynolds via NeXus
Sent: 02 November 2021 21:04
To: nexus at nexusformat.org
Cc: Dylan McReynolds <dmcreynolds at lbl.gov>
Subject: [Nexus] NXxas questions

Hello,

I'm working with a team at the ALS trying to figure out how to represent dichroism raw data. Much of what we would want is combinations of NXxas data, but we are relatively new to Nexus and very new to NXxas. We would love to connect with anyone who has experience with NXxas, or even see some real world examples of NXxas files.

One of the major questions we have is to store multiple different channels at the same time while staying within the structure of NXxas.

Thanks!

Dylan McReynolds
ALS Computing Group
Advanced Light Source
Lawrence Berkeley National Lab
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