论文标题

电阻板腔室环境友好的气体混合物:一项实验和仿真研究

Environment-friendly gas mixtures for Resistive Plate Chambers: an experimental and simulation study

论文作者

Bianchi, A., Delsanto, S., Dupieux, P., Ferretti, A., Gagliardi, M., Joly, B., Manen, S. P., Marchisone, M., Micheletti, L., Quaglia, L., Rosano, A., Terlizzi, L., Vercellin, E.

论文摘要

电阻板室(RPC)在大型强子对撞机上表现出稳定的操作,并在整个运行1(2010-2013)和2(2015-2018)中具有令人满意的效率,并使用C $ _ {2} $ _ {2} $ _ {2} $ h $ _ {2} $ _ {2} $ f $ _ {4} $ _ {4} $ - 基于基于Sf $ _ _} i-c $ _ {4} $ h $ _ {10} $。由于其全球变暖潜力(GWP)很高,因此C $ _ {2} $ h $ _ {2} $ f $ _ {4} $由于最近的欧洲联盟法规而逐步淘汰生产,因此其成本逐渐增加。因此,找到具有低GWP的新RPC气体混合物已经变得非常重要。该贡献描述了用四氟丙烯C $ _ {3} $ h $ _ {2} $ f $ _ {4} $(HFO1234ZE),一种非常低的GWP的氢氟菌素。模拟结果与C $ _ {3} $ H $ _ {2} $ f $ _ {4} $ - 基于AR的添加AR,HE,CO $ $ _ {2} $ $ $ $ $ $ _ {2} $ _ {4}的$ _ {4} $ {4} $ {4} $ {4} $ {4} $ {4} $ {4} $ {4}的仿真结果。该模拟允许研究C $ _ {3} $ h $ _ {2} $ f $ _ {4} $与混合物中的其他气体组件之间的相互作用,并且可以允许识别与C $ _ {3} $ h $ _ $ _ $ _ for的最有希望的环境友好的气体混合物。

Resistive Plate Chambers (RPC) have shown stable operation at the Large Hadron Collider and satisfactory efficiency for the entire Run 1 (2010-2013) and Run 2 (2015-2018) with C$_{2}$H$_{2}$F$_{4}$-based gas mixtures and the addition of SF$_{6}$ and i-C$_{4}$H$_{10}$. Since its global warming potential (GWP) is high, C$_{2}$H$_{2}$F$_{4}$ is phasing out of production due to recent European Union regulations and as a result its cost is progressively increasing. Therefore, finding a new RPC gas mixture with a low GWP has become extremely important. This contribution describes the simulation of the RPC efficiency with tetrafluoropropene C$_{3}$H$_{2}$F$_{4}$ (HFO1234ze), a hydrofluoroolefin with very low GWP. Simulation results are systematically compared with measurements of RPC efficiency in C$_{3}$H$_{2}$F$_{4}$-based gas mixtures with the addition of different combinations of Ar, He, CO$_{2}$, O$_{2}$ and i-C$_{4}$H$_{10}$ in various concentrations. This simulation allows the study of the interplay between C$_{3}$H$_{2}$F$_{4}$ and the other gas components in the mixture as well as may allow the identification of the most promising environment-friendly gas mixtures with C$_{3}$H$_{2}$F$_{4}$ for RPCs.

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