[en] In the 40 mm SSC cross-section design radial helium venting passages located every 6 inches were present. The purpose of these passages was to provide escape routes for helium from the coil cooling passage to the bypasses during a quench. The passages are introduced in the magnet by placing special yoke laminations with channels going from the bypasses to the inner radius. The question as to whether the venting passages are still needed in the 50 mm design is addressed here. One might expect that they would be more needed here since the stored magnetic field energy increases considerably faster than the coil cooling passage cross-section, unless the width of the latter is increased. Since the dimensions of the beam tube are not fixed at this time two cases are considered: a coil cooling passage gap of 1.3 mm and one of 5 mm. An existing computer code developed at Brookhaven National Laboratory by R.P. Shutt and programmed by K. Jellet is applied to the present problem. Pressures, helium, coil and yoke temperatures, and mass flows are computed during a quench for one magnet with no venting occurring in the interconnect regions. Only one magnet is considered here as opposed to a string of magnets