Performance of TPC detector prototype integrated with UV laser tracks for the circular collider

Z. Y. Yuan; H. R. Qi; Y. Chang; L. W. Yu; Y. M. Cai; H. Y. Zhang; J. Zhang; Q. Ouyang; Y. L. Li; Z. Deng; H. Gong

doi:10.1016/j.nima.2022.167241

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arXiv · 2206.02375

Performance of TPC detector prototype integrated with UV laser tracks for the circular collider

Z. Y. Yuan·H. R. Qi·Y. Chang·L. W. Yu·Y. M. Cai·H. Y. Zhang·J. Zhang·Q. Ouyang·Y. L. Li·Z. Deng·H. Gong

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Abstract

Several new experimental concepts in high-energy particle physics have been proposed in recent years. The physical goals include precisely measuring the properties of particles such as Higgs, Z and W, and even looking for signs of new physics at future colliders. To meet the evolving requirements for particle track detector, Time Projection Chamber(TPC) detector prototype integrated with a UV laser track system was developed for the main track detector at Circular Electron Positron Collider(CEPC). This prototype consists of 6 horizontal laser tracks around TPC detector chamber, a fast electronics readout of 1280 channels, a GEM detector with $200\times 200\,mm^2$ active area, and the DAQ system. The hit resolution, dE/dx resolution and drift velocity were studied by measuring and analyzing using the TPC prototype and UV laser tracks. The dE/dx resolution of the prototype was measured to be $(8.9\pm0.4)\,\%$. Extrapolating this to CEPC TPC with 220 layers and longer track, the resolution was estimated to be $(3.36\pm0.26)\,\%$. All results indicated that the TPC detector prototype integrated with UV laser tracks can work well.

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Z. Y. Yuan, H. R. Qi, Y. Chang, L. W. Yu, Y. M. Cai, H. Y. Zhang, J. Zhang, Q. Ouyang, Y. L. Li, Z. Deng, H. Gong. 2022-06-06. Performance of TPC detector prototype integrated with UV laser tracks for the circular collider. https://doi.org/10.1016/j.nima.2022.167241

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