Speaker
Description
Super Tau Charm Facility (STCF) is the third-generation e+-e- collider under design and R&D with a circumference of about 800-900 m, a center-of-mass energy range from 2-7 GeV and design luminosity higher than 0.5 x 1035 cm-2 s-1, about 100 times higher than BEPC-II. To squeeze the beam for higher luminosity, compact twin-aperture high gradient interaction region superconducting magnet (IRSM) systems are required on both sides of interaction point (IP). The IRSM system consists of four twin-aperture superconducting quadrupole magnets. As part of the key R&D activities at accelerator CDR stage, full-scale twin-aperture QD1 quadrupole magnets were designed and constructed. The QD1 magnets have design field gradients of 50 T/m, field harmonics below 0.2‰, and site at 900 mm distance away from IP at beam crossing angle of 60 mrad. In this paper, details of QD1 design, construction and test are reported.
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