The bound coherent neutron-scattering amplitudes of deuterium, mercury, and fluorine have been measured by the mirror-reflection method. The measured values are aD=+6.21±0.04 F, aHg=+12.67±0.13 F, and aF=+5.83±0.17 F. The mercury and fluorine values are in agreement with presently accepted values. The deuterium value departs seriously from most previously reported measurements. This value implies + 6.13±{}0.04 F for the quartet scattering amplitude, + 0.13±{}0.05 F for the doublet scattering amplitude, and 3.15±{}0.04 b for the free-atom scattering cross section of deuterium.
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Bartolini et al. (1968) studied this question.
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