  Space-charge-induced resonance crossing is one notable limitation of beam
intensity in high-intensity synchrotrons. This paper proposes a modification to
the Resonance Driving Terms (RDTs) to compensate for the combined effects of
space charge and magnetic field imperfections under resonance crossing. The new
RDTs are named modified RDTs. The effectiveness of the modified RDTs is
demonstrated through simulations of half-integer and 3rd-order resonance
crossings using the lattice of the High Intensity Heavy-Ion Accelerator
Facility Booster Ring (HIAF-BRing). The simulations illustrate that the
compensation provided by the modified RDTs significantly suppresses emittance
growth and reduces distortion in the phase space.
