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1999_MISCCONF
13 items
last update: 09 Nov 2001, 00:00 		Subscribe to basket
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1.
Vacuum Stability for Ion Induced Gas Desorption / Collins, I R ; Gröbner, Oswald ; Malyshev, O B ; Rossi, A ; Strubin, Pierre M ; Veness, R J M
Ion induced vacuum instability was first observed in the Intersecting Proton Storage Rings (ISR) at CERN and in spite of substantial vacuum improvements, it remained a limitation of the maximum beam current throughout the operation of the machine. [...]
LHC-Project-Report-312 ; CERN-LHC-Project-Report-312. - 1999. - 7 p.
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2.
Experimental Investigations of the Electron Cloud Key Parameters / Anashin, V V ; Baglin, V ; Cimino, R ; Collins, I R ; Dostovalov, R V ; Fedorov, N V ; Gómez-Goñi, J ; Gröbner, Oswald ; Henrist, Bernard ; Hilleret, Noël (CERN) et al.
Motivated by a potential electron cloud instability and the possible existence of electron mulitpacting in the LHC vacuum system, that may result in additional gas desorption and unmanageable heat loads on the cryogenic system, an extensive experimental research program is underway at CERN to quantify the key parameters driving these phenomena. [...]
LHC-Project-Report-313 ; CERN-LHC-Project-Report-313. - 1999. - 8 p.
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3.
Studies of Decay and Snapback Effects on LHC Dipole Magnets / Haverkamp, M ; Bottura, L ; Schneider, M
LHC model magnets have dynamic field imperfections of various nature. Two effects of particular importance are field component decay during injection and ''snapback'' during the first few seconds of acceleration, which happens over typically 15 to 20 mT. [...]
LHC-Project-Report-336; CERN-LHC-Project-Report-336.- Geneva : CERN, 2000 - 5 p. Access to fulltext document: PDF;
In : 4th European Conference on Applied Superconductivity, pp.1183-1186
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4.
High Temperature Superconducting Current Leads for the Large Hadron Collider . - rev. version / Ballarino, A
The Large Hadron Collider (LHC) will be equipped with about 8000 superconducting magnets. [...]
LHC-Project-Report-337 ; CERN-LHC-Project-Report-337. - 1999. - 5 p.
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5.
Photon Stimulated Desorption and the Effect of Cracking of Condensed Molecules in a Cryogenic Vacuum System / Anashin, V V ; Collins, I R ; Gröbner, Oswald ; Malyshev, O B
The design of the Large Hadron Collider (LHC) vacuum system requires a complete understanding of all processes which may affect the residual gas density in the cold bore of the 1.9 K cryomagnets. [...]
LHC-Project-Report-372 ; CERN-LHC-Project-Report-372. - 2000. - 15 p.
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6.
Magnetic and Electric Field Effects on the Photoelectron Emission from Prototype LHC Beam Screen Material / Anashin, V V ; Collins, I R ; Dostovalov, R V ; Fedorov, N V ; Gröbner, Oswald ; Krasnov, A A ; Malyshev, O B ; Pyata, E E
This paper describes experimental studies of the effect of a dipole field on the photoelectron emission and on the photon reflectivities from LHC beam screen material. These studies were performed using synchrotron radiation from the VEPP-2M storage ring at BINP (Novosibirsk). [...]
LHC-Project-Report-373; CERN-LHC-Project-Report-373.- Geneva : CERN, 2001 - 9 p. Access to fulltext document: PDF;
In : 6th European Vacuum Conference, Villeurbanne, France, 7 - 10 Dec 1999, pp.255-60 - Please contact the library if you need to access this document.
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7.
The Large Hadron Collider, A Megascience Project / Lebrun, P
The Large Hadron Collider (LHC) will be the next particle accelerator built to serve the world's high-energy physics community at CERN, the European Organisation for Nuclear Research. Reusing the 26.7-km circumference tunnel and infrastructure of the existing LEP collider, the LHC will make use of advanced technology - high-field superconducting magnets operated in superfluid helium - to push the energy frontier up by an order of magnitude, while remaining economically feasible. [...]
LHC-Project-Report-374; CERN-LHC-Project-Report-374.- Geneva : CERN, 2001 - 9 p. Access to fulltext document: PDF;
In : 38th INFN Eloisatron Project Workshop : Superconducting Materials for High Energy Colliders "Ettore Majorana", Erice, Italy, 19 - 25 Oct 1999, pp.11-20 - Please contact the library if you need to access this document.
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8.
Industrial Surfaces Behaviour Related to the Adsorption and Desorption of Hydrogen at Cryogenic Temperature / Moulard, G ; Jenninger, B ; Saitô, Y
The determination of the hydrogen adsorption capacity on different industrial surfaces has been carried out by measuring isothermal adsorption. [...]
LHC-Project-Report-375 ; CERN-LHC-Project-Report-375. - 2000. - 14 p.
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9.
Superconducting Magnets and RF Cavities for the LHC / Taylor, T
The Large Hadron Collider (LHC) presently under construction at CERN relies on superconducting technology both for the complex magnet system and the radio frequency accelerating structure. The technologies adopted for these systems are described..
LHC-Project-Report-379; CERN-LHC-Project-Report-379.- Geneva : CERN, 2001 - 7 p. Access to fulltext document: PDF;
In : 38th INFN Eloisatron Project Workshop : Superconducting Materials for High Energy Colliders "Ettore Majorana", Erice, Italy, 19 - 25 Oct 1999, pp.1-10 - Please contact the library if you need to access this document.
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10.
Integrating the Latest Technologies into a Java Process Control MMI / Momal, F
The LHC/IAS (equipment control) Group is developing supervisory systems by means of industrial SCADA packages. [...]
CERN-LHC-99-006-IAS. - 1999. - 4 p.
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11.
From a UNIX to a PC Based SCADA System / Momal, F
In order to facilitate the development of supervisory applications involved in slow process control (such as cryogenic control), the LHC/IAS Group (Equipment Controls Group) opted, a few years ago, for an industrial SCADA package which runs on UNIXÒ platforms. [...]
CERN-LHC-99-008-IAS. - 1999. - 4 p.
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12.
New Long-term Historical Data Recording and Failure Analysis System for the CERN Cryoplants / Barbeau, H ; Barth, K ; Baud, R ; Dauvergne, J P ; Delikaris, D
CERN uses several liquid helium cryoplants (total of 21) for cooling large variety of superconducting devices namely: accelerating cavities, magnets for accelerators and particle detectors. [...]
CERN-LHC-99-005-ECR. - 1999. - 8 p.
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13.
Overview of Single-particle Nonlinear Dynamics / Todesco, Ezio
We give an overview of the single-particle non linear dynamics in circular accelerators. The main topics are: integration of equations of motion, fast symplectic tracking, dynamic aperture definition, long-term methods, quality factors and lattice optimization. [...]
CERN-LHC-99-001-MMS.- Geneva : CERN, 1998 - 17 p. Report Access to fulltext document: PDF;
In : 16th Advanced ICFA Beam Dynamics Workshop on Nonlinear and Collective Phenomena in Beam Physics, Arcidosso, Italy, 1 - 5 Sep 1998, pp.157-172 - Please contact the library if you need to access this document.
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