The ALICE HMPID detector ready for collisions at the LHC

被引:8
|
作者
Molnar, Levente [1 ,2 ]
机构
[1] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[2] Hungarian Acad Sci, Res Inst Particle & Nucl Phys, H-1051 Budapest, Hungary
关键词
HMPID; ALICE; RICH; CsI photocathode;
D O I
10.1016/j.nima.2008.07.088
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
ALICE has been specifically optimized to study heavy-ion collisions at the LHC, up to a charged particle density of 8000 per unit of rapidity in central heavy-ion collisions at root S-NN = 5.5 TeV. The High Momentum Particle Identification Detector (HMPID) has a proximity focusing geometry with a liquid C6F14 Cherenkov radiator coupled to Multi-Wire Pad Chambers (MWPC) equipped with CsI photocathodes, over a total active area of 11 m(2). It has been designed to identify charged pions and kaons in the range 1 <= p <= 3 Gev/c and protons in the range 2 <= p <= 5 Gev/c. The as-built detector and all relevant subsystems (gas, liquid C6F14, Cooling and control) are described. Installation issues and first commissioning results are also presented. (C) 2008 Elsevier B.V. All rights reserved.
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页码:27 / 30
页数:4
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