Application of the SSCTRK numerical simulation program to the evaluation of the SSC magnet aperture

The SSCTRK numerical simulation code has been used to estimate the benefit of increasing the SSC dipole aperture from 4 to 5 cm. The increase in maximum amplitude of stable betatron oscillations depends on the level to which systematic errors have been corrected. Two cases have been studied, a highly corrected ring and a ring with limited corrections. The maximum stable amplitude increase is approximately a factor of the ring with limited systematic corrections. The aperture comparison has been made at 105 revolutions. Magnetic error assumptions are described in detail and a new table of errors suggested for future simulations is given. 8 figs., 6 tabs