3.3.1.42. NXpolarizer

Status:

base class, extends NXobject

Description:

A spin polarizer.

Symbols:

No symbol table

Groups cited:

NXtransformations

Structure:

@default: (optional) NX_CHAR

Declares which child group contains a path leading ...

Declares which child group contains a path leading to a NXdata group.

It is recommended (as of NIAC2014) to use this attribute to help define the path to the default dataset to be plotted. See https://www.nexusformat.org/2014_How_to_find_default_data.html for a summary of the discussion.

type: (optional) NX_CHAR

one of these values: “crystal”, “supermirror”, “3He”

composition: (optional) NX_CHAR

description of the composition of the polarizing material

reflection: (optional) NX_INT (Rank: 1, Dimensions: [3]) {units=NX_UNITLESS}

[hkl] values of nominal reflection

efficiency: (optional) NX_FLOAT {units=NX_DIMENSIONLESS}

polarizing efficiency

depends_on: (optional) NX_CHAR

NeXus positions components by applying a set of translations and rotations ...

NeXus positions components by applying a set of translations and rotations to apply to the component starting from 0, 0, 0. The order of these operations is critical and forms what NeXus calls a dependency chain. The depends_on field defines the path to the top most operation of the dependency chain or the string “.” if located in the origin. Usually these operations are stored in a NXtransformations group. But NeXus allows them to be stored anywhere.

TRANSFORMATIONS: (optional) NXtransformations

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source:

https://github.com/nexusformat/definitions/blob/main/base_classes/NXpolarizer.nxdl.xml