论文标题
GSI MCBM光束时间期间的MTOF性能
mTOF performance during mCBM beam time at GSI
论文作者
论文摘要
目前在德国达姆施塔特(Darmstadt)建造的反普罗顿和离子研究(FAIR)的未来设施是全球最大的研究项目之一。压缩的重磅物质(CBM)实验是公平的主要支柱之一,研究了高bary骨密度的量子染色体动力学(QCD)相图,其在高达10 MHz的重离子碰撞中,具有前所未有的相互作用速率。这需要新的数据驱动读数链,新的数据分析方法和高速率的检测器系统。 CBM飞行壁时间(CBM-TOF)的任务是带电的粒子识别。具有不同速率功能的多间隙电阻板室(MRPC)将用于CBM-TOF相应区域。为了减少CBM的调试时间,已在2019年在GSI SIS18设施上安装并测试了CBM完整的系统测试集合,并在2019年的GSI SIS18设施进行了测试。在Tsinghua University开发的高速MRPC原型(称为MRPC2)被选中用于MCBM MTOF模型中的MRPC。在MCBM实验中,还测试了来自USTC的其他薄浮光玻璃MRPC,即CBM较低速率区域的MRPC3,预见到了CBM较低的速率区域。将显示通过所谓的跟踪方法分析的两种MRPC的性能结果。
The future Facility for Anti-proton and Ion Research (FAIR), currently in construction in Darmstadt, Germany, is one of the largest research projects worldwide. The Compressed Baryonic Matter (CBM) experiment is one of the main pillars at FAIR, studying the quantum chromodynamics (QCD) phase diagram at high baryon densities with unprecedented interaction rate in heavy ion collisions up to 10 MHz. This requires new data-driven readout chain, new data analysis methods and high-rate capable detector systems. The task of the CBM Time of Flight wall (CBM-TOF) is the charged particle identification. Multi-gap Resistive Plate Chambers (MRPCs) with different rate capabilities will be used at CBM-TOF corresponding regions. To reduce the commissioning time for CBM, a CBM full system test-setup called mini-CBM (mCBM) had been installed and tested with beams at GSI SIS18 facility in 2019. The high-rate MRPC prototypes developed at Tsinghua University, called MRPC2, were selected to be implemented in mTOF modules for mCBM. Additional thin float glass MRPCs from USTC called MRPC3, foreseen for the CBM lower rate region, were also tested in the mCBM experiment. Performance results of the two kinds of MRPCs analyzed by the so called tracking method will be shown.