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VOLUME 44 (1986) | ISSUE 6 | PAGE 269
Universal liquid-hydrogen source of polarized cold and ultracold neutrons at the VVR-M reactor of the Leningrad Institute of Nuclear Physics
Record-high intensities and flux densities of polarized cold neutrons [3 Χ 1010 n/s and 6 X 108 n/(s · cm2) ] and a record-high intensity of ultracold neutrons (5 X 105 n/s) with a flux density of 6 Χ 103 n/{$-cm2) have been attained for the velocity range VxfVy9Vz < 7.8 m/s at an intermediate-power reactor. The degree of polarization of the neutron beam is 90 ± 5%. The yields of ultracold and cold neutrons have been studied with deuterium and hydrogen-deuterium mixtures.