Abstract
A magnetic neutron lens and a prism using sextupole and quadrupole permanent magnets have been studied. The enhancement of beam intensity by a 2 m sextupole magnet was measured and a maximum gain of 36.5 in the wavelength range 14.0 Å⩽ λ⩽14.8 Å was observed. The prism function of a quadrupole magnet has been experimentally demonstrated by observing a two-dimensional neutron image. We discuss the capability to measure neutron energy by combining the prism and a position sensitive detector and a possible application in neutron scattering experiment.
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