  A new model of the bremsstrahlung emission which accompanies proton decay and
collisions of protons off nuclei in the energy region from the lowest up to
intermediate, has been developed. This model includes spin formalism, potential
approach for description of interaction between protons and nuclei, and
operator of emission includes component of the magnetic emission (defined on
the basis of Pauli equation). In the problem of the bremsstrahlung during the
proton decay in the first time a role of the magnetic emission is studied using
such a model. For the studied $^{146}{\rm Tm}$ nucleus it has been studied the
following: (1) How much does the magnetic emission change the full
bremsstrahlung spectrum? (2) At which angle is the magnetic emission the most
intensive relatively electric one? (3) Is there some space region where the
magnetic emission increases strongly relatively electric one? (4) How intensive
is the magnetic emission in the tunneling region? (5) Which values has the
probability at its maximum and at zero energy limit of the emitted photons? It
is demonstrated that the model is able to describe enough well experimental
data of the bremsstrahlung emission which accompanies collisions of protons off
the $^{9}{\rm Be}$, $^{12}{\rm C}$ and $^{208}{\rm Pb}$ nuclei at the incident
energy $T_{\rm lab}=140$ MeV (at the photon energy up to 120 MeV).
