Conceptual Design for the Thermal Shield Bridges and Multilayer Insulation in the Interconnect Region for the SSC

Abstract

The interconnect region serves as the connection area between magnets. In order to minimize radiant heat transfer in the interconnect area, we use shield bridges which span the 80K and 20K shield gap between adjacent magnets. A sliding joint between bridge sections on adjacent magnets accommodates contraction during cool-down. An investigation was done to determine which attachment schemes (riveted or bolted versus welded) are better for heat transfer. Each shield bridge is covered with the same multilayer insulation scheme used throughout the body of the magnet. These shield bridges also contain pressure reliefs for each shield in the event of an internal piping failure. The reliefs are located in the upper half of the shield section in order to prevent liquid spills from impinging directly onto the vacuum vessel wall.

Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC02-89ER40486.

Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC02-76CH03000.