Magnet R and D for the SSC

The recently compiled Conceptual Design Report of the SSC calls for two proton beams circulating on separate racetrack paths, and colliding repetitively at interaction regions on the straightaways. The design energy of 20 TeV per proton will allow the subquark scale to be reached with adequate resolution, and the proposed luminosity of 1033 cm-2 s-1 will give a useful event rate. The grouping together of the interaction regions (IRs) in clusters on the diametrically opposed straight sections allows easier and cheaper access to experimental and support areas, without inducing beam control problems. In the Conceptual Design, the main west cluster comprises the injector complex, main laboratory and offices, plus two IRs and two utility areas for beam injection and abort; the east cluster has four IRs, with two to the be built immediately, and two reserved for later construction. The two long arc sections of the SSC each contain 166 cells: each of these arc cells is 192 m long, and consists of two half-cells of five bending magnets between two quadrupoles of opposite polarity. The magnet arrangement and lattice functions within a cell are shown