2.3.3.3.137. NXinteraction_vol_em

Status:

base class, extends NXobject

Description:

Base class for describing the interaction volume of particle-matter interaction. ...

Base class for describing the interaction volume of particle-matter interaction.

Computer models like Monte Carlo or molecular dynamics / electron- or ion-beam interaction simulations can be used to qualify and (or) quantify the shape of the interaction volume. Results of such simulations can be summary statistics or single-particle resolved sets of trajectories.

Explicit or implicit descriptions are possible.

  • An implicit description is via a set of electron/specimen interactions represented ideally as trajectory data from the computer simulation.

  • An explicit description is via an iso-contour surface using either a simulation grid or a triangulated surface mesh of the approximated iso-contour surface evaluated at specific threshold values. Iso-contours could be computed from electron or particle fluxes through an imaginary control surface (the iso-surface). Threshold values can be defined by particles passing through a unit control volume (electrons) or energy-levels (e.g. the case of X-rays). Details depend on the model.

  • Another explicit description is via theoretical models which may be relevant e.g. for X-ray spectroscopy

Further details on how the interaction volume can be quantified is available in the literature for example:

Symbols:

No symbol table

Groups cited:

NXdata, NXprocess

Structure:

DATA: (optional) NXdata

PROCESS: (optional) NXprocess

Hypertext Anchors

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

NXDL Source:

https://github.com/FAIRmat-NFDI/nexus_definitions/tree/fairmat/contributed_definitions/NXinteraction_vol_em.nxdl.xml