[Nexus] Beamline description using Nexus

Heike Görzig heike.goerzig at helmholtz-berlin.de
Mon Jan 22 17:03:45 GMT 2018

Thanks a lot for all your replies.

With the answer of Ray I can continue working, because I really was
stuck here. Everything else of the beamline is modeled so far.  I also
have added the fields for slope error and the size of the mirror.

I think I asked a bit wrong, I just wanted to know how you were doing
things, so I could use the same way, same vocabulary and units. I
understand the part of the fields might be something for the NIAC. --> I
will discuss this with Jens-Uwe Hoffmann.

About the application definition: I saw NXarchive wich is for ICAT,
thats why I thought there might be a definition/policy for simulations
or calibration/commissioning in some facility. I know this is out of
scope of the nexusformat, but might be useful for validation of experiments.

I will discuss further with Jens-Uwe Hoffmann.



On 22.01.2018 17:08, Pete Jemian wrote:
> Heike:
> Thanks for checking in.
> On 1/22/2018 9:17 AM, Koennecke Mark (PSI) wrote:
>> You create a new group and give it the type NXgrating. Then add
>> fields matching the
>> description of NXgrating.
> ...
>> NeXus, by tradition, has been very neutron centric. It can very well
>> be that there are fields missing, ....
> You should also feel free to add any fields you see are missing. The
> NeXus standard allows for the use of any field which is not already
> defined.  If you do introduce a new field, please make sure it is
> truly missing and that the name does not duplicate what is already in
> use. This is when members of the NIAC can be most helpful since they
> are aware of fields in other definitions.  Some other definitions may
> already be using the concept of what you wish to describe and the NIAC
> can identify that.
> Pete


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