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VOLUME 105 | ISSUE 8 | PAGE 523
Neutron lifetime and density of states of fluoropolymers at low temperatures
Abstract
Present status of the measurements of the neutron lifetime is shortly reviewed. We report the inelastic neutron scattering measurement of the density of vibrational states G(ω) of two fluoropolymers which are promising coating materials for the storage of ultracold neutrons (UCN) in closed volumes covered with polymer film. From determined G(ω) we calculate the expected UCN loss coefficients.