The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
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DOI：
10.1016/j.nima.2010.04.042
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发表时间：
2010-10-01
影响因子：
1.4
通讯作者：
Windelband, B.
中科院分区：
文献类型：
--
作者：
Alme, J.;Andres, Y.;Windelband, B.
介绍了ALICE时间投影室（TPC）的设计、建造和调试。它是CERN LHC的ALICE实验中用于模式识别，跟踪和识别带电粒子的主要设备。TPC为圆柱形，体积接近90 m（3），工作在0.5T平行于其轴的螺线管磁场中，本文详细描述了该探测器在LHC能区中心Pb-Pb碰撞极端多重数环境中的设计考虑。硬件（场笼，读出室，电子），基础设施（气体和冷却系统，激光校准系统），和软件的实施所产生的要求，导致许多技术创新，这是描述沿着的所有主要组件的检测器，目前实现的介绍。我们还报告了完成第一轮独立校准运行后所实现的性能，并证明结果接近TPC技术设计报告中规定的结果。(C)2010年CERN为ALICE合作的利益。Elsevier B. V.出版，保留所有权利。
The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in shape with a volume close to 90 m(3) and is operated in a 0.5T solenoidal magnetic field parallel to its axis.In this paper we describe in detail the design considerations for this detector for operation in the extreme multiplicity environment of central Pb-Pb collisions at LHC energy. The implementation of the resulting requirements into hardware (field cage, read-out chambers, electronics), infrastructure (gas and cooling system, laser-calibration system), and software led to many technical innovations which are described along with a presentation of all the major components of the detector, as currently realized. We also report on the performance achieved after completion of the first round of stand-alone calibration runs and demonstrate results close to those specified in the TPC Technical Design Report. (C) 2010 CERN for the benefit of the ALICE collaboration. Published by Elsevier B.V. All rights reserved.