Abstract

A new generation electron-positron collider — the Super Tau-Charm Facility (STCF) — has been proposed in China. The STCF will have a luminosity greater than 0.5 × 1035 cm-2 s-1 and a center-of-mass energy range of 2 to 7 GeV. Injectors are an essential component of circular colliders, particularly positron generating systems. The proposed STCF injector, Linac, accelerates both electrons and positrons from 1.0 GeV up to 3.5 GeV with a high intensity of 1.5 nC per bunch for Tau-Charm research. An injector with a high-energy electron-target positron production system was designed. The design baseline of the STCF injector Linac, positron source, and damping ring have been carried out in this paper.

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