3.3.1.4. NXbeam_stop

Status:

base class, extends NXobject

Description:

A device that blocks the beam completely, usually to protect a detector.

Beamstops and their positions are important for SANS and SAXS experiments.

Symbols:

No symbol table

Groups cited:

NXgeometry

Structure:

description: (optional) NX_CHAR

description of beamstop

Any of these values: circular | rectangular

size: (optional) NX_FLOAT {units=NX_LENGTH}

size of beamstop

x: (optional) NX_FLOAT {units=NX_LENGTH}

x position of the beamstop in relation to the detector

y: (optional) NX_FLOAT {units=NX_LENGTH}

y position of the beamstop in relation to the detector

distance_to_detector: (optional) NX_FLOAT {units=NX_LENGTH}

distance of the beamstop to the detector

status: (optional) NX_CHAR

Any of these values: in | out

(geometry): (optional) NXgeometry

engineering shape, orientation and position of the beam stop.

NXDL Source:

https://github.com/nexusformat/definitions/blob/master/base_classes/NXbeam_stop.nxdl.xml