Conveners
Silicon Detector: 1
- 梁志均 LIANG Zhijun ()
Silicon Detector: 2
- Harald Fox (Lancaster University)
Silicon Detector: 3
- 梁志均 LIANG Zhijun ()
Silicon Detector: 4
- Hongbo Zhu (Zhejiang University)
Description
Zoom Link, ID:97990003364, Code:309122
The CEPC Silicon Tracker, comprising the Inner Silicon Tracker (ITK) and Outer Silicon Tracker (OTK), will cover a total active area of approximately 100 m². It integrates advanced pixel sensors for the ITK and microstrip sensors for the OTK, with micron-level precision to achieve per-mille-level momentum resolution, measuring charged-particle trajectories from below 1 GeV/c to above 100...
High-Voltage CMOS (HV-CMOS) pixel detectors, with excellent radiation hardness and fast signal collection enabling nanosecond-level timing and micron-level spatial resolution, are chosen as the baseline for the CEPC Inner Silicon Tracker. Our R&D using a 55 nm process has produced the COFFEE series of prototype chips. Following verification with COFFEE2, the COFFEE3 chip was designed and...
AC-coupled Low Gain Avalanche Detectors (AC-LGADs) have become leading contenders for upcoming 4D tracking systems, attracting considerable interest from numerous research organizations. These detectors have been selected as the Outer Tracker (OTK) detectors for the Circular Electron Positron Collider (CEPC), as the detector can provide both high-precision spatial resolution (∼10 µm) for...
Low Gain Avalanche Detectors (LGADs) exhibit excellent properties, including ultra-fast time resolution and a high signal-to-noise ratio. They are widely used in high-energy physics experiments for precise particle detection and time-of-flight measurements. However, irradiation introduces deep-level defects and causes detector performance degradation. Therefore, improving the radiation...
The CEPC silicon tracker (ITK and OTK) will cover a large sensor area of approximately 100 m². Achieving high performance requires minimizing the material budget while ensuring high structural strength and efficient cooling—a particular challenge for this large and sophisticated tracking system. This report presents the detailed mechanical and cooling design of the CEPC silicon tracker...
The first four layers of the CEPC(Circular Electron Positron Collider) vertex detector are designed using wafer-scale sensors based on stitching technology. To ensure the inner most layer is as close as possible to the central beam pipe, the design radius is set at 11 mm, posing significant challenges for the development of bent detector modules. Currently, a prototype model with a minimum...
