Zobrazeno 1 - 10
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pro vyhledávání: '"M Pezzetti"'
Designing, building, commissioning, operating and maintaining multiple complex cryogenics process control systems involves many challenges. For several years, CERN has developed various solutions to help with the whole lifecycle of a cryogenic proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42a2d6bb9f313c6dab1a8142d045674
http://cds.cern.ch/record/2839957
http://cds.cern.ch/record/2839957
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1240:012119
During the so-called Long Shutdown 2 (LS2), the Large Hadron Collider (LHC) has been entirely warmed-up in 2019 and cooled-down in 2020/2021 after an important maintenance period. For the first time, these complex and delicate operations have been pe
Autor:
M. Pezzetti
Publikováno v:
EPJ Techniques and Instrumentation, Vol 8, Iss 1, Pp 1-20 (2021)
The CERN cryogenic facilities demand a versatile, distributed, homogeneous and highly reliable control system. For this purpose, CERN conceived and developed several frameworks (JCOP, UNICOS, FESA, CMW), based on current industrial technologies and C
Autor:
M. Pezzetti, L. De Vito, Antonio Esposito, F. Gargiulo, Mohammed Chadli, Umberto Cesaro, Pasquale Arpaia, H. Coppier
A fault detection method exploiting Hidden Markov Models (HMMs) is proposed for fluid machinery without adequate a priori information about faulty conditions. The method is trained only on data acquired during normal machine operation. For anomaly de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::680dd918c5bb80ea6d22a5cbfbc553ad
http://hdl.handle.net/11583/2848078
http://hdl.handle.net/11583/2848078
Autor:
C. Giloux, M. Pezzetti, V. Lefebvre, A. Lees, O. Pirotte, J. P. Lamboy, V. Benda, Marta Bajko, A. Vande Craen
As part of the R&D; program for HL-LHC, the future upgrade of the Large Hadron Collider (LHC), the vertical magnet test facility in the SM18 cryogenic test hall at CERN has seen significant development. Since the installation of HFM and Cluster D cry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f9e16e2a9beefbfaaf4943ca443ffb9
http://cds.cern.ch/record/2714438
http://cds.cern.ch/record/2714438
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 755:012146
The demand for liquid helium (LHe) for users at CERN without dedicated cryogenic infrastructure is set to increase due to future projects and experiments in the Antiproton Decelerator. LHe is supplied to the users by means of 500 liter dewars filled
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 755:012086
The Large Hadron Collider (LHC) operates using superfluid helium provided by eight large refrigeration units (2.4 kW @ 1.8 K each). These units supplied by specialized cryogenic industrial suppliers are composed of serial hydrodynamic cold compressor
Autor:
G. Severino, Pasquale Arpaia, Carlo Baccigalupi, Umberto Cesaro, Mohammed Chadli, M. Pezzetti, H. Coppieri
Publikováno v:
I2MTC
A calibration method exploiting a single external reference is proposed for sensors arrays in presence of a measurand non-linear gradient in the system under test. The calibration artifacts due to a non-uniform distribution of the measurand in the sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cf2d3ac8346240130ae0da46ba5dd02
http://hdl.handle.net/11588/848628
http://hdl.handle.net/11588/848628
Mainstreams in research on measurement systems for cryogenic process monitoring are reviewed with the aim of defining key current trends and possible future evolutions. At this aim, research mainstreams are classified according to the measurand: liqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a370974d9162dcd8994cdeb2c0d5d3f3
http://hdl.handle.net/11588/747654
http://hdl.handle.net/11588/747654
Autor:
M. Pezzetti, C. Fluder, M. Zapolski, F. Frassinelli, M. Dudek, T. Wolak, A. Tovar-Gonzalez, A. Drozd
Publikováno v:
Physics Procedia. 67:1134-1140
The software development for the control system of the cryogenics in the LHC is partially automatized. However, every single modification requires a sequence of consecutive and interdependent tasks to be executed manually by software developers. A la