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- Aamodt, K., et al.
(författare)
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The ALICE experiment at the CERN LHC
- 2008
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Ingår i: Journal of Instrumentation. - 1748-0221. ; 3:S08002
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Forskningsöversikt (refereegranskat)abstract
- ALICE (A Large Ion Collider Experiment) is a general-purpose, heavy-ion detector at the CERN LHC which focuses on QCD, the strong-interaction sector of the Standard Model. It is designed to address the physics of strongly interacting matter and the quark-gluon plasma at extreme values of energy density and temperature in nucleus-nucleus collisions. Besides running with Pb ions, the physics programme includes collisions with lighter ions, lower energy running and dedicated proton-nucleus runs. ALICE will also take data with proton beams at the top LHC energy to collect reference data for the heavy-ion programme and to address several QCD topics for which ALICE is complementary to the other LHC detectors. The ALICE detector has been built by a collaboration including currently over 1000 physicists and engineers from 105 Institutes in 30 countries, Its overall dimensions are 16 x 16 x 26 m(3) with a total weight of approximately 10 000 t. The experiment consists of 18 different detector systems each with its own specific technology choice and design constraints, driven both by the physics requirements and the experimental conditions expected at LHC. The most stringent design constraint is to cope with the extreme particle multiplicity anticipated in central Pb-Pb collisions. The different subsystems were optimized to provide high-momentum resolution as well as excellent Particle Identification (PID) over a broad range in momentum, up to the highest multiplicities predicted for LHC. This will allow for comprehensive studies of hadrons, electrons, muons, and photons produced in the collision of heavy nuclei. Most detector systems are scheduled to be installed and ready for data taking by mid-2008 when the LHC is scheduled to start operation, with the exception of parts of the Photon Spectrometer (PHOS), Transition Radiation Detector (TRD) and Electro Magnetic Calorimeter (EMCal). These detectors will be completed for the high-luminosity ion run expected in 2010. This paper describes in detail the detector components as installed for the first data taking in the summer of 2008.
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| 2. |
- Sundararajan, G., et al.
(författare)
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Thermal spraying in India : Status and prospects
- 2009
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Ingår i: Proceedings of the International Thermal Spray Conference. ; , s. 511-516
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Konferensbidrag (refereegranskat)abstract
- Notwithstanding the fact that the thermal spray technologies have globally proliferated into virtually all major industry segments, the acceptance of these processes by the Indian industry had been historically sluggish. However, the scenario in the country with respect to the thermal spray technologies is rapidly changing. A meaningful indicator of the obvious growth of thermal spraying is the spurt in the number of job shops, equipped with the latest thermal spray variants and sophisticated job-handling capabilities, that can now offer coating service. The number of captive units meeting in-house coating needs has also increased markedly in recent years. The non-availability of indigenous sources for thermal spray equipment as well as feedstock materials had been one of the key factors hampering growth of the thermal spray industry in India. The increasing adoption of thermal spraying by the Indian industry has been spurred by the fact that home-grown Indian companies are manufacturing spray systems, handling equipment and performance evaluation test rigs that are already being exported to foreign countries. Research on frontier areas like Cold Gas Dynamic Spraying and Solution Precursor Plasma Spraying is also active in the country. The above factors, along with the healthy growth trends observed recently, suggest a very bright future for thermal spray technologies in India. This paper provides an overview of the country status, charting the growth of thermal spray coatings in India in recent times. Copyright © 2009 ASM International® All rights reserved.
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