3.3.3.38. NXazint2d

Status:

application definition, extends NXobject

Description:

This application definition describes data from two-dimensional area detectors t ...

This application definition describes data from two-dimensional area detectors that has been integrated azimuthally, with a certain radial binning in units of q or 2theta both and with a binning around the azimuthal angle eta.

Symbols:

The symbol(s) listed here will be used below to coordinate datasets with the same shape.

nImg: Number of intergated images

nRad: Number of radial bins

nRadEdge: Number of radial bin edges (nRad+1)

nEta: Number of azimuthal bins

nEtaEdge: Number of azimuthal bin edges (nEta+1)

Groups cited:

NXdata, NXentry, NXinstrument, NXmonochromator, NXparameters, NXprocess, NXsource, NXsubentry

Structure:

ENTRY: (required) NXentry

solid_angle_applied: (required) NX_BOOLEAN

is solid angle correction applied or not.

polarization_applied: (required) NX_BOOLEAN

is polarization correction applied or not.

azint2d: (required) NXsubentry ⤆

definition: (required) NX_CHAR ⤆

Official NeXus NXDL schema to which this file conforms. ...

Official NeXus NXDL schema to which this file conforms.

Obligatory value: NXazint2d

instrument: (required) NXinstrument ⤆

name: (required) NX_CHAR ⤆

Name of instrument (beamline) where data was collected.

monochromator: (required) NXmonochromator ⤆

wavelength: (required) NX_FLOAT ⤆

Wavelength in angstrom.

energy: (required) NX_FLOAT ⤆

Energy in keV.

source: (required) NXsource ⤆

name: (required) NX_CHAR ⤆

Name of laboratory where data was collected.

type: (required) NX_CHAR ⤆

Type of laboratory where data was collected.

probe: (required) NX_CHAR ⤆

Type of probe.

reduction: (required) NXprocess ⤆

program: (required) NX_CHAR ⤆

Name of the program that made this file.

version: (required) NX_CHAR ⤆

Version of the progam that made this file.

date: (required) NX_DATE_TIME ⤆

Date the file was created.

reference: (required) NX_CHAR

Citation or other references for the algorithm used in the processing.

note: (optional) NX_CHAR

Notes required to help interpret the data, e.g. on coordinate systems.

input: (required) NXparameters

Parameters should exactly match those required by the algorithm used in ...

Parameters should exactly match those required by the algorithm used in the processing. For example, azint requires error_model, mask, n_splitting, poni, etc.

data: (required) NXdata ⤆

Azimuthally integrated data with radial binning in q or 2theta and with azimuthal binning.

@axes: (required) NX_CHAR ⤆

Obligatory value: ['.', 'azimuthal_axis', 'radial_axis']

@interpretation: (required) NX_CHAR

Obligatory value: image

@signal: (required) NX_CHAR ⤆

Obligatory value: I

I: (required) NX_NUMBER (Rank: 3, Dimensions: [nImg, nEta, nRad])

@long_name: (required) NX_CHAR

Obligatory value: intensity

@units: (required) NX_CHAR

Obligatory value: arbitrary units

I_errors: (optional) NX_NUMBER (Rank: 3, Dimensions: [nImg, nEta, nRad])

@long_name: (optional) NX_CHAR

Obligatory value: estimated intensity error

@units: (optional) NX_CHAR

Obligatory value: arbitrary units

radial_axis: (required) NX_NUMBER (Rank: 1, Dimensions: [nRad])

@long_name: (required) NX_CHAR

Any of these values: q | 2theta

@units: (required) NX_CHAR

Any of these values: 1/angstrom | degrees

radial_axis_edges: (optional) NX_NUMBER (Rank: 1, Dimensions: [nRadEdge])

@long_name: (required) NX_CHAR

Any of these values: q bin edges | 2theta bin edges

@units: (required) NX_ANGLE

Any of these values: 1/angstrom | degrees

norm: (optional) NX_NUMBER (Rank: 2, Dimensions: [nEta, nRad])

@long_name: (required) NX_CHAR

Obligatory value: number of pixels contributing to the corresponding bin

@units: (required) NX_CHAR

Obligatory value: arbitrary units

azimuthal_axis: (optional) NX_NUMBER (Rank: 1, Dimensions: [nEta])

@long_name: (required) NX_CHAR

Obligatory value: azimuthal bin center

@units: (required) NX_CHAR

Any of these values: degrees | radians

azimuthal_axis_edges: (optional) NX_NUMBER (Rank: 1, Dimensions: [nEtaEdge])

@long_name: (required) NX_CHAR

Obligatory value: azimuthal bin edges

@units: (required) NX_ANGLE

Any of these values: degrees | radians

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/contributed_definitions/NXazint2d.nxdl.xml