The aim of this paper is to present the design, the implementation and the operational modes of the Liquid Circulation System (LCS) built to circulate, purify and monitor the liquid perfluorohexane (C(6)F(14)) in the ALICE HMPID. The HMPID RICH uses C(6)F(14) as Cherenkov radiator medium circulating in 21 quartz trays. LCS features a pressure-regulated closed circuit, ensuring the C(6)F(14) highest transparency to ultraviolet light. Intrinsically safe working conditions are obtained, thanks to a novel liquid distribution "cascade" system. Moreover the system is protected against anomalous working conditions by a dedicated Control System, which operates it in both automatic and manual mode, locally and remotely, safeguarding the quartz radiator vessels.
|Titolo:||The Cherenkov radiator system of the high momentum particle identification detector of the ALICE experiment at CERN-LHC|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.nima.2010.10.069|
|Appare nelle tipologie:||1.1 Articolo in rivista|