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A singles y-ray spectrum and a spectrum of summed amplitudes of coinciding pulses (SACP) were measured in the ~a6W(n, 7) ~svW reaction experiment on the thermal neutron beam. It was for the first time that the data on J87W y-transitions were obtained in the excitation energy region from 1500-2500 keV. The neutron binding energy was determined to be B,, = 5467.25 (4) keV (statistical error only). In result the level scheme of ~87W was developed in the excitation energy interval 1 < E/ < 3.4 MeV, which contained 105 levels with about 70 of them being identified for the first time. The experimental values for summed intensities of two-step cascades were established to exceed those predicted by the modern statistical theory (by 36 • 6 %). This is explained by a considerable contribution of few-quasiparticle components to wave functions of compound and intermediate states.

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