NXrefscan

Status:

application definition, extends NXobject

Description:

This is an application definition for a monochromatic scanning reflectometer.

It does not have the information to calculate the resolution since it does not have any apertures.

Symbols:

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

nP: Number of points

Groups cited:

NXdata, NXdetector, NXentry, NXinstrument, NXmonitor, NXmonochromator, NXsample, NXsource

Structure:

entry: (required) NXentry

title: (required) NX_CHAR

start_time: (required) NX_DATE_TIME

end_time: (required) NX_DATE_TIME

definition: (required) NX_CHAR

Official NeXus NXDL schema to which this file conforms

Obligatory value: NXrefscan

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

monochromator: (required) NXmonochromator

wavelength: (required) NX_FLOAT {units=NX_WAVELENGTH}

DETECTOR: (required) NXdetector

data: (required) NX_INT (Rank: 1, Dimensions: [nP])

polar_angle: (required) NX_FLOAT (Rank: 1, Dimensions: [nP]) {units=NX_ANGLE}

sample: (required) NXsample

name: (required) NX_CHAR

Descriptive name of sample

rotation_angle: (required) NX_FLOAT (Rank: 1, Dimensions: [nP]) {units=NX_ANGLE}

control: (required) NXmonitor

mode: (required) NX_CHAR

Count to a preset value based on either clock time (timer) or received monitor counts (monitor).

Any of these values: monitor | timer

preset: (required) NX_FLOAT

preset value for time or monitor

data: (required) NX_FLOAT (Rank: 1, Dimensions: [nP]) {units=NX_ANY}

Monitor counts for each step

data: (required) NXdata

data: link (suggested target: /NXentry/NXinstrument/NXdetector/data

rotation_angle: link (suggested target: /NXentry/NXsample/rotation_angle

polar_angle: link (suggested target: /NXentry/NXinstrument/NXdetector/polar_angle

Hypertext Anchors

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

NXDL Source:

https://github.com/FAIRmat-Experimental/nexus_definitions/tree/fairmat/applications/NXrefscan.nxdl.xml