CanSAS Proposal NX4: For NXpolarizer and NXflipper

[smk78]

Oct 2024.

Background
CanSAS are considering proposals from a community-led sub-group for revisions to the NXcanSAS application definition to support Magnetic-SANS techniques.

The NXcanSAS proposals may be viewed here.

In drafting the proposals the sub-group noted that some NeXus Base Classes would benefit from additional structure. This issue is one of several detailing those additions.

CanSAS Proposal NX4

• That the NXpolarizer and NXflipper base classes be granted the additional parameter description.

Aside: This proposal would give NXpolarizer and NXflipper the same functionality as some other classes in NXinstrument (eg, NXaperture, NXdetector) and allow multiple instances of these devices, as is required for some types of Magnetic-SANS experiment, to be distinguished. It would also provide another way to distinguish whether a polarizer device is being used as a polarizer or an analyzer!.