  Diffuse X-ray emission of the radio nebula W50 along the line of the of jets
of the microquasar SS433 has a non-thermal power law component. This could be
the inverse-Compton scattered emission of the SS433 accretion disk funnel,
which is collimated in a cone before the scattering off relativistic electrons
- so called emission cone, hypothetical and invisible directly. This model
would remove the synchrotron model problems of the X-ray emission: of
acceleration of the emitting electrons to extreme Lorenz factors $\gamma >
10^9$ in the mildly relativistic SS433 jets and morphological difference of W50
in the synchrotron radio and X-ray bands. Our study of the comptonization model
showed up that in the case of the minimal factor $\gamma_{\rm min}$ of the
order 1 the energy of the relativistic particles, which upscatter the cone
photons, is close to or exceeds total energy of the nebula - the case of
inapplicability of the model. In the case of $\gamma_{\rm min} > 10$ the cone
emission is comptonized beyond the 1 - 10\,keV band, consequently the existing
observational data are non-sensitive to the emission cone.
