Accuracy evaluation of hexapole electromagnets
Hexapole electromagnets used as lenses for neutron beams are investigated. The influences on the neutron optical performance of a hexapole magnet in focus-to-focus configuration in the presence of a bipolar field component, due to magnet asymmetry or misalignment of an otherwise ideal hexapole magnet with respect to the optical axis, are determined by numerical simulation based on ray tracing of individual neutron paths.
