Figure 1
From: High resolution neutron Larmor diffraction using superconducting magnetic Wollaston prisms
(a) A schematic showing the geometry of single-arm neutron Larmor diffraction, where L is the path length of the rectangular field perpendicular to the lattice planes and the magnetic field has intensity B. d is the lattice spacing. (b) A schematic showing the single-arm Larmor diffraction with magnetic Wollaston prisms, where the rectangular magnetic field region shown in (a) is replaced by two magnetic Wollaston prisms with a rectangular field region in between. S and 2D are the size of the rectangular field region and the Wollaston prisms respectively. The field intensities are B1, B2, B3, B4 and B5 respectively, as indicated in the schematic. For these pictures, \({\vec{n}}_{C}\) and \({\vec{n}}_{B}\) are the normals to the crystal planes and magnetic field boundary respectively.
