Hybrid III: the system, test results, the next step

The Hybrid III superconducting magnet (SCM) was constructed in 1991 to supplement the 31-T Hybrid II facility magnet at the Francis Bitter National Magnet Laboratory. With a quasi-adiabatic designed coil, the SCM induced a total central field of 33.5 T during tests while submerged in liquid helium at 1.65 K. It also generated a critical current of 2200 A. Although tests have demonstrated that it may achieve an operating temperature of 1.7 K and a critical current of 2230 A, work is ongoing to obtain a central field of 35 T.