Status and prospects of TPC module and prototype at high luminosity Z physics on CEPC
Abstract
The Circular Electron–Positron Collider (CEPC) has been proposed as a Higgs and high luminosity factory for the last few years in China. To achieve the high precision physical goals at CEPC, the high resolution () tracker for the particle track reconstruction and particle identification are demanded. Time Projection Chamber (TPC) is one of the main concept proposal of the central tracker detector in very large 3D volume, it has an excellent performance on the moment measurement, measurement and the spatial resolution. The simulation results were given when the TPC detector will operate at the high luminosity pole at the future circular collider. The pixelated readout TPC is a potential option to replace the traditional pad readout with the low gain, low occupancy, and outstanding pattern recognition. In the last several years, a TPC module, the readout electronics and prototype for the specific requirements have been developed at the Institute of High Energy Physics (IHEP). TPC module will could suppress the ions in chamber continuously running in the different gains (2000–5000) under T2K mixture gases. A TPC prototype with active area G detector module integrated the narrow 266nm UV laser tracks along the drift length of 500mm, and the low power consumption () Application-Specific Integrated Circuits (ASIC) chip including analog to digital converter (ADC) function has been developed too. The update results of the spatial resolution has been obtained after some experimental studies have been done by the TPC prototype.
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