Eval14 Glossary

Alien

Reflections in the interfering lattice are called aliens. They can overlap with the main reflection.

Bad Background

Marked pixels are part of the main reflection, neighbours, aliens or are flagged with a overflow, bad respons.
A least squares plane is calculated through all unmarked (i.e. background) pixels. All pixels with a value > removesigma*sigBG are removed from the background (they are called badbg), and the plane is recalculated. This removal procedure is repeated until no more pixels are excluded. The removed pixels are coloured blue in the bottom row.

Interfering

This is how all interfering lattices are called. Interfering lattices are defined in the boxfile with the TWIN keyword. Reflections in these lattices are called aliens.

Main

The main lattice is the lattice under investigation. The central reflection is called the main reflection. Other reflections from this lattice are called neighbours.

Neighbour

Reflections in the main lattice (except the main reflection) are called neigbours. They can overlap with the main reflection.

Sharefraction

If two reflections overlap, the sharefraction is defined as the shared volume divided by the total volume of the main reflection.
Eval14