Edits in preparation for moving NXinteraction_volume_em to the application definition NXem, the top-level docstring and scientific context why having such a class is useful but the class has not been worked out in detail enough to warrant having an own base class, it should just be moved to NXem/entryID/em_sim also strengthening the point that NXem can be used for computer simulations of EM matters.

Author: atomprobe-tc

base_classes/NXinteraction_vol_em.nxdl.xml

@@ -28,20 +28,19 @@
          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.
+         or single-particle-resolved sets of trajectories.
 
-         Explicit or implicit descriptions are possible.
+         Explicit or implicit descriptions of the geometry of this
+         interaction volume 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
+         * An explicit description is via 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.
+           Iso-contours could be computed from electron or particle flux through
+           an imaginary control surface (the iso-surface) 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