Fig. 4From: Merged neutral beamsPrincipal components of the magnetic guide. a Overview of the complete guide, b cross section through a mount of the first guide section, c and d magnetic field distribution in the first guide section and cross section through it, respectively. e–g same as b–d but for the second section of the guide. h Photograph of one of the segments from the first section, with a Hall probe inserted from the left to measure the y-component of the magnetic fieldBack to article page