3.3.2.49. NXtomoproc

Status:

application definition, extends NXobject

Description:

This is an application definition for the final result of a tomography experiment: a 3D construction of some volume of physical properties.

Symbols:

These symbols will be used below to coordinate datasets with the same shape.

nX: Number of voxels in X direction

nY: Number of voxels in Y direction

nZ: Number of voxels in Z direction

Groups cited:

NXdata, NXentry, NXinstrument, NXparameters, NXprocess, NXsample, NXsource

Structure:

ENTRY: (required) NXentry

title: (required) NX_CHAR ⤆

definition: (required) NX_CHAR ⤆

Official NeXus NXDL schema to which this file conforms …

Official NeXus NXDL schema to which this file conforms

Obligatory value: NXtomoproc

INSTRUMENT: (required) NXinstrument ⤆

SOURCE: (required) NXsource ⤆

type: (required) NX_CHAR ⤆

name: (required) NX_CHAR ⤆

probe: (required) NX_CHAR ⤆

Any of these values: neutron | x-ray | electron

SAMPLE: (required) NXsample ⤆

name: (required) NX_CHAR ⤆

Descriptive name of sample

reconstruction: (required) NXprocess ⤆

program: (required) NX_CHAR ⤆

Name of the program used for reconstruction

version: (required) NX_CHAR ⤆

Version of the program used

date: (required) NX_DATE_TIME ⤆

Date and time of reconstruction processing.

parameters: (required) NXparameters ⤆

raw_file: (required) NX_CHAR

Original raw data file this data was derived from

data: (required) NXdata ⤆

data: (required) NX_NUMBER (Rank: 3, Dimensions: [nX, nY, nZ]) ⤆

This is the reconstructed volume. This can be different …

This is the reconstructed volume. This can be different things. Please indicate in the unit attribute what physical quantity this really is.

@transform: (required) NX_CHAR

@offset: (required) NX_CHAR

@scaling: (required) NX_CHAR

x: (required) NX_FLOAT (Rank: 1, Dimensions: [nX]) {units=NX_ANY} ⤆

This is an array holding the values to use for the x-axis of …

This is an array holding the values to use for the x-axis of data. The units must be appropriate for the measurement.

y: (required) NX_FLOAT (Rank: 1, Dimensions: [nY]) {units=NX_ANY} ⤆

This is an array holding the values to use for the y-axis of …

This is an array holding the values to use for the y-axis of data. The units must be appropriate for the measurement.

z: (required) NX_FLOAT (Rank: 1, Dimensions: [nZ]) {units=NX_ANY} ⤆

This is an array holding the values to use for the z-axis of …

This is an array holding the values to use for the z-axis of data. The units must be appropriate for the measurement.

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/applications/NXtomoproc.nxdl.xml