application definition, extends NXobject
This is the application definition for a TOF laue diffractometer
The symbol(s) listed here will be used below to coordinate datasets with the same shape.
nXPixels: Number of X pixels
nYPixels: Number of Y pixels
nTOF: Time of flight
entry: (required) NXentry
definition: (required) NX_CHAR
Official NeXus NXDL schema to which this file conforms
instrument: (required) NXinstrument
detector: (required) NXdetector
This assumes a planar 2D detector. All angles and distances refer to the center of the detector.
The polar_angle (two theta) where the detector is placed.
The azimuthal angle where the detector is placed.
data: (required) NX_INT (Rank: 3, Dimensions: [nXPixels, nYPixels, nTOF])
@signal: (required) NX_POSINT
sample: (required) NXsample
name: (required) NX_CHAR
Descriptive name of sample
orientation_matrix: (required) NX_FLOAT (Rank: 2, Dimensions: [3, 3])
The orientation matrix according to Busing and Levy conventions. This is not strictly necessary as the UB can always be derived from the data. But let us bow to common usage which includes thie UB nearly always.
unit_cell: (required) NX_FLOAT (Rank: 1, Dimensions: )
The unit cell, a, b, c, alpha, beta, gamma. Again, not strictly necessary, but normally written.
control: (required) NXmonitor
mode: (required) NX_CHAR
- Count to a preset value based on either clock time (timer) or received monitor counts
Any of these values:
preset: (required) NX_FLOAT
preset value for time or monitor
data: (required) NX_INT (Rank: 1, Dimensions: [nTOF])
use these attributes
name: (required) NXdata
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.