The ALICE HMPID detector ready for collisions at the LHC

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• 作者：Levente Molnar ; On behalf of the ALICE-HMPID group
• 关键词：HMPID ; ALICE ; RICH ; CsI photocathode
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2008
• 出版时间：21 September 2008
• 年：2008
• 卷：595
• 期：1
• 页码：27-30
• 全文大小：1044 K

文摘

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 . 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 . It has been designed to identify charged pions and kaons in the range and protons in the range . 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.