期刊论文

Inner Tracking System Upgrade for the ALICE Experiment

中文

原子核物理评论

1007-4627

2020

37

03

734-741

10.11804/NuclPhysRev.37.2019CNPC51

2016YFE0100900:政府间国际科技创新合作重点专项 CCNU19QN058:中央高校基本科研业务费专项华中师范大学项目

本校为第一机构

大型重离子对撞实验(A Large heavy-Ion Collision Experiment,ALICE)按计划在大型强子对撞机(Large Hadron Collider,LHC)的第二次停机(2019—2021)期间进行探测器升级工作。为了对强相互作用物质——夸克胶子等离子体(Quark-Gluon Plasma,QGP)的性质进行更细致的研究,作为升级计划中重要的一个内容是把ALICE实验现有的内径迹系统探测器(Inner Tracking System,ITS)全面升级为基于单片有源像素传感器(Monolithic Active Pixel Sensor,MAPS)技术的硅像素探测器(习惯称之为ITS2),并在Run 3和Run 4期间采集更多的铅核-铅核碰撞数据。新的ITS2共由7层(内3层,中间2层和外2层)探测桶面组成,共由24 00...

A Large Ion Collider Experiment(ALICE) at the Large Hadron Collider(LHC) at CERN will undergo a major upgrade during the 2nd LHC Long Shutdown(LS2) scheduled in 2019~2021 that will allow to study in detail of strong interaction matter Quark-Gluon Plasma(QGP) properties. To collecting more Pb-Pb events during the Run 3 and Run 4, the replacement of the existing Inner Tracking System(ITS) with a completely new ultra-light high resolution detector based on Monolithic Active Pixel Sensors(MAPS) technique is one of the cornerstones within this upgra...