Cost scaling analysis of large warm-bore superconducting quadrupoles

This paper presents an approach to estimating the cost of large warm-bore superconducting quadrupoles that are frequently used in magnetic imaging systems in accelerators. Quadrupole magnet radial apertures greater than about 10 cm and gradients exceeding 10 T/m are considered. A relationship is established so that the cost estimate may be scaled with the gradient, aperture, and length of the magnet.