Speaker
Description
The Circular Electron Positron Collider (CEPC) is next-generation electron positron collider for precision studies of Higgs, flavour physics and beyond. A key component of its tracking system is the Inner TracKer (ITK) using High-Voltage CMOS sensor technology. We will introduce the design of the CEPC ITK, which consists of three barrel layers and four pairs of endcap disks, covering a total active area of 20 $m^2$. HVCMOS sensor using advanced 55nm process is chosen in order to achieve a few micrometer spatial resolution, a few nanosecond timing resolution, with a moderate power consumption. The design of modules is shared for barrel and endcap part to facilitate production. The whole system is designed for minimal material budget, with ~0.7%X0 per layer in the barrel part. The design has been implemented in CEPC software framework for performance study and future optimization.
