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FIRST EXPERIENCE WITH THE LHC CRYOGENIC INSTRUMENTATION

N. Vauthier, R. Avramidou, Ch. Balle, J. Casashyphen;Cubillos, M. Ciechanowski, G. Fernandez-Penacoba, E. Fortescue-Beck, P. Gomes, N. Jeanmonod, A. Lopez-Lorente, A. Suraci, J. G. Weisend (+14 others)
2008 AIP Conference Proceedings  

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The LHC under commissioning at CERN will be the world's largest superconducting accelerator and therefore makes extensive use of cryogenic instruments. These instruments are installed in the tunnel and therefore have to withstand the LHC environment that imposes radiation-tolerant design and construction. Most of the instruments require individual calibration; some of them exhibit several variants as concerns measuring span; all relevant data are therefore stored in an Oracle® database. Those
more » ... ta are used for the various quality assurance procedures defined for installation and commissioning, as well as for generating tables used by the control system to configure automatically the input/output channels. This paper describes the commissioning of the sensors and the corresponding electronics, the first measurement results during the cool-down of one machine sector; it discusses the different encountered problems and their corresponding solutions. ABSTRACT The LHC under commissioning at CERN will be the world's largest superconducting accelerator and therefore makes extensive use of cryogenic instruments. These instruments are installed in the tunnel and therefore have to withstand the LHC environment that imposes radiation-tolerant design and construction. Most of the instruments require individual calibration; some of them exhibit several variants as concerns measuring span; all relevant data are therefore stored in an Oracle® database. Those data are used for the various quality assurance procedures defined for installation and commissioning, as well as for generating tables used by the control system to configure automatically the input/output channels. This paper describes the commissioning of the sensors and the corresponding electronics, the first measurement results during the cool-down of one machine sector; it discusses the different encountered problems and their corresponding solutions.
doi:10.1063/1.2908695 fatcat:baommkoz2bcnrbkihsonwm4tuu
Citation

N. Vauthier, R. Avramidou, Ch. Balle, J. Casashyphen;Cubillos, M. Ciechanowski, G. Fernandez-Penacoba, E. Fortescue-Beck, P. Gomes, N. Jeanmonod, A. Lopez-Lorente, A. Suraci, J. G. Weisend, John Barclay, Susan Breon, Jonathan Demko, Michael DiPirro, J. Patrick Kelley, Peter Kittel, Arkadiy Klebaner, Al Zeller, Mark Zagarola, Steven Van Sciver, Andrew Rowe, John Pfotenhauer, Tom Peterson, Jennifer Lock. "FIRST EXPERIENCE WITH THE LHC CRYOGENIC INSTRUMENTATION." AIP Conference Proceedings (2008)