Speaker
Description
The proposed Super Tau-Charm Facility (STCF) is a next generation high-luminosity $e^+e^-$ collider with a designed peak luminosity exceeding $0.5\times{10}^{35}cm^{-2}s^{-1}$. Its inner tracker is required to operate under high-rate and high-background conditions while maintaining an ultra-low material budget. MAPS is considered a promising technology for the STCF inner tracker (ITKM), which is designed with four layers of staves targeting a material budget of about 0.3% $X_0$ per layer. To meet the specific requirements of the STCF, a series of monolithic sensors, CharTPix, is being developed to simultaneously achieve low power consumption (~$50 mW/cm^2$), ~20 ns time resolution, energy deposition measurement capability, and good spatial resolution. The concept and specifications of the STCF ITKM, together with its recent R&D progress, are presented, with a focus on the design and characterization of the CharTPix prototypes.