The Relativistic Heavy Ion Collider now under construction at Brookhaven National Laboratory (BNL) is a colliding ring accelerator to be completed in 1999. Through collisions of heavy ions it is hoped to observe the creation of matter at extremely high temperatures and densities, similar to what may have occurred in the original ''Big Bang.'' The collider rings will consist of 1740 superconducting magnet elements. Some of elements are being manufactured by industrial partners (Northrop Grumman and Everson Electric). Others are being constructed or assembled at BNL. A description is given of the magnet designs, the plan for manufacturing and test results. In the manufacturing of the magnets, emphasis has been placed on uniformity of their performance and on quality. Results so far indicate that this emphasis has been very successful.

The magnet system for the Relativistic Heavy Ion Collider (RHIC) at Brookhaven is briefly described. The basic layout of the RHIC and a regular arc cell are shown, and the layout of the magnets to bring the beams into collision is described. The characteristics of the dipole and quadrupole magnets required for the arcs and intersection regions are given. The research and development effort has focused on the arc dipoles, and the current dipole design is shown. Magnet performance characteristics are reported. The arc quadrupole design and characteristics are given. (LEW).

The proposed Relativistic Heavy Ion Collider (RHIC) will operate at ion energies of 7 to 100 GeV/Amu for ions as heavy as Au197. This paper discusses the superconducting magnet system for this machine. It will consist of 372 dipoles typically 9.7 meters long with an operating field of 3.4 Tesla, 492 quadrupoles with typical length 1.4 meters, gradient 76 T/m, and approximately 1000 sextupole and corrector magnets. A detailed design has been developed for the dipoles which will have a clear bore of 76 mm; less detailed designs are presented for the other components. A proof-of-concept magnet has been constructed and successfully tested. 3 refs., 5 figs.

A Relativistic Heavy Ion Colliding beam accelerator (RHIC) has been proposed at Brookhaven National Laboratory. The machine would generate colliding beams of energies up to 100 GeV/amu of ions as heavy as 197Au. The facilities necessary to accelerate these ions up to 11 GeV/amu are either already operational or under construction at BNL. This paper will discuss the magnet system for the actual collider ring itself, which will further accelerate the particles to beam energies of between 7 and 100 GeV/amu, store them, and provide interaction regions. This magnet system will consist of two rings of superconducting magnets placed in an existing 3.8 km tunnel.

In August 1984, Brookhaven National Laboratory submitted a proposal to the Department of Energy (DOE) for the construction of a Relativistic Heavy Ion Collider (RHIC). Since then funding has continued for the detailed design of RHIC. The hardware for RHIC consists of two concentric rings of superconducting magnets in a 2.4 mile circumference with six intersections. Bunches of ions will travel in opposite directions in each of the two rings and eventually collide head on at one of the six intersections. The hardware design involves complicated facilities for liquid helium cryogens, cryostat design, and pipe systems. The greatest challenge however is the ion beam position relative to the geometric center of the rings. There are three hundred and seventy-two dipole magnets that are ten meters long and weigh 4300 Kg (4.5 tons) each. Each dipole must be positioned in the ring to {plus minus} 0.5 mm. In addition, there are four hundred and ninety-two quadrupole magnets that must be positioned to {plus minus} 0.1 mm which is a total position error. This total position error includes all the surveying and part tolerance. To accomplish this task requires detailed planning and design of the cryostats which contain each magnet and the tunnel assembly throughout the 2.4 mile circumference. The IDEAS' software package provides a way to analyze this large scale problem. 11 figs.

Superconducting helical dipole magnets will be used in the Brookhaven Relativistic Heavy Ion Collider (RHIC) to maintain polarization of proton beams and to perform localized spin rotations at the two major experimental detector regions. Requirements for the helical dipole system are discussed, and magnet prototype work is reported.