assertEquals(4, beam.getDirection()[0], 1e-4);
assertEquals(5, beam.getDirection()[1], 1e-4);
assertEquals(6, beam.getDirection()[2], 1e-4);
// Geometry
Region chamber = mcss.getChamber();
assertEquals(1, chamber.getSubRegions().size());
RegionBase region = chamber.getSubRegions().get(0);
IMaterialScatterModel model = region.getScatterModel();
assertEquals(1234, FromSI.eV(model.getMinEforTracking()), 1e-4);
Material mat = region.getMaterial();