Polarized deuterium target for studying polarization parameters in np-scattering

A polarized deuteron target of the LIYaF synchrocyclotron was used for investigation of deuteron dynamic polarization in the deuterated ethylene glycol (ethanediols) mixture of 25% CΛ2DΛ4(OH)Λ2 and 75% CΛ2DΛ4(OD)Λ2 with a CrV admixture. To detect deuteron NMR signals, a Q-meter with a sharp automatic tuning of the frequency of a parallel receiving circuit to the generator frequency was used. It is shown that th maximal polarization value for the deuterons of both signs didn't change with the target volume increasing from 4 up to 9 cm3. Changes in the spin temperatures of protons and deuterons, at a trend to the same temperature establishment, takes place during polarization pumping. An approximately time of deuteron relaxation under ''frozen'' conditions exceeds 150 h at 65 mC in the 2.6 T field