NXtofnpd¶
Status:
application definition, extends NXobject
Description:
This is a application definition for raw data from a TOF neutron powder diffractometer
Symbols:
The symbol(s) listed here will be used below to coordinate datasets with the same shape.
nDet: Number of detectors
nTimeChan: nTimeChan description
- Groups cited:
NXdata, NXdetector, NXentry, NXinstrument, NXmonitor, NXsample, NXuser
Structure:
entry: (required) NXentry
title: (required) NX_CHAR
start_time: (required) NX_DATE_TIME
definition: (required) NX_CHAR
Official NeXus NXDL schema to which this file conforms
Obligatory value:
NXtofnpdpre_sample_flightpath: (required) NX_FLOAT {units=NX_LENGTH}
This is the flight path before the sample position. This can be determined by a chopper, by the moderator or the source itself. In other words: it the distance to the component which gives the T0 signal to the detector electronics. If another component in the NXinstrument hierarchy provides this information, this should be a link.
user: (required) NXuser
name: (required) NX_CHAR
INSTRUMENT: (required) NXinstrument
detector: (required) NXdetector
data: (required) NX_INT (Rank: 2, Dimensions: [nDet, nTimeChan])
detector_number: (required) NX_INT (Rank: 1, Dimensions: [nDet])
distance: (required) NX_FLOAT (Rank: 1, Dimensions: [nDet]) {units=NX_LENGTH}
distance to sample for each detector
time_of_flight: (required) NX_FLOAT (Rank: 1, Dimensions: [nTimeChan]) {units=NX_TIME_OF_FLIGHT}
polar_angle: (required) NX_FLOAT (Rank: 1, Dimensions: [nDet]) {units=NX_ANGLE}
polar angle for each detector element
azimuthal_angle: (required) NX_FLOAT (Rank: 1, Dimensions: [nDet]) {units=NX_ANGLE}
azimuthal angle for each detector element
SAMPLE: (required) NXsample
name: (required) NX_CHAR
Descriptive name of sample
MONITOR: (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|timerpreset: (required) NX_FLOAT
preset value for time or monitor
distance: (required) NX_FLOAT {units=NX_LENGTH}
data: (required) NX_INT (Rank: 1, Dimensions: [nTimeChan])
time_of_flight: (required) NX_FLOAT (Rank: 1, Dimensions: [nTimeChan]) {units=NX_TIME_OF_FLIGHT}
data: (required) NXdata
Hypertext Anchors¶
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.
