[en] Document available in abstract form only, full text of publication follows: This paper describes the results of neutron spectrometry using the Bonner Sphere Spectrometer (BSS ) at the ring cyclotron facility at the Research Centre for Nuclear Physics (RCNP), Osaka University, Japan. The BSS system consists of 15 polyethylene (PE) spheres with spherical ³He proportional counters in their centre. It also includes two PE spheres with lead shells inside, to increase their response to high-energy neutrons above 10 MeV. Quasi-monoenergetic neutron fields at RCNP were generated from a 10 mm thick Li target using the ⁷Li(p,n)⁷Be reaction, injected by 245 and 388 MeV protons. The neutrons produced at 0 deg. and 30 deg. were extracted into the time-of-flight (TOF) tunnel of 100 m length through the concrete collimator of 10 x 12 cm² aperture and 150 cm thickness. The neutron energy spectra were measured at distance of 41 m from the target in the TOF tunnel. To deduce the energy spectra of neutrons from thermal to 1 GeV, an unfolding method with MSANB code was used together with response functions obtained by neutron transport calculations using the MCNP/LAHET code. The neutron energy spectra are discussed in terms of neutron fluence rates and ambient dose equivalent H*(10). The BSS results are also compared to neutron energy spectra measured by a NE213 organic liquid scintillator using the TOF method. (authors)