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Resolution calculations for novel neutron beam elements
Author(s) -
Cussen Leo D.
Publication year - 2000
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889800013224
Subject(s) - formalism (music) , resolution (logic) , neutron , optics , physics , beam (structure) , lattice (music) , computational physics , materials science , computer science , nuclear physics , acoustics , art , musical , artificial intelligence , visual arts
It is now possible to build new types of optical elements for neutron beams. These include monochromating crystals with rectangular mosaic profiles, `gradient' monochromating crystals with varying lattice spacing, and collimators with rectangular profiles. Phase‐space methods are used to describe the resolution of a combination of two collimators and a monochromating crystal for various combinations of novel beam elements. The description of rectangular‐profile elements in this formalism considerably simplifies the normal description of resolution effects and should thus prove useful as a teaching tool.