First assessment of reliability data for the LHC accelerator and detector cryogenic system components

Perinić, G.; Claudet, S.; Alonso-Canella, Irene; Balle, Christoph; Barth, K.; Bel, Jean-François; Benda, V.; Bremer, J.; Brodzinski, K.; Casas‐Cubillos, J.; Cuccuru, G; Cugnet, Michel; Delikaris, D.; Delruelle, N.; Dufay-Chanat, L.; Ferlin, G.; Fluder, C.; Gavard, Emmauelle; Girardot, Roger; Haug, F.; Herblin, L.; Junker, S.; Klabi, Tahar; Knoops, S.; Lamboy, Jean-Paul; Legrand, Dominique; Metselaar, J.W.; Park, Adam; Perin, Antonio; Pezzetti, M.; Fernandez, Gonzalo Penacoba; Pirotte, O.; Rogez, Edouard; Suraci, A.; Stewart, Laura A. M.; Tavian, L.; Tovar-Gonzales, Antonio; Weelderen, R. van; Vauthier, N.; Vullierme, B.; Wagner, U.

doi:10.1063/1.4707066

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rest of the elements in the system are assumed to have a defined level of redundancy and are assumed to generate a thermal cycle as it will take months for them to be repaired or replaced. The failure probabilities have been originated from literature [5] [6].…”

Section: Study Conditionsmentioning

confidence: 99%

PIP-II cryoplant non thermal cycling updates

Creus-Prats,

Soyars,

Dhuley

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

The Proton Improvement Plan-II (PIP-II) is a crucial upgrade to the Fermilab accelerator complex, featuring a new 800-MeV Superconducting Radio-Frequency (SRF) linear accelerator (LINAC) with 23 cryomodules operating at 2 K. The LINAC thermohydraulic conditions are satisfied by the cryogenic subsystems: Cryogenic Distribution System (CDS), a helium refrigerator cold box (CB), a warm compression station (WCS) and a helium recovery system (RSYS). The accelerator has a strict requirement of non-thermal cycling of the LINAC cryomodules during planned and unplanned subsystem outages. This paper presents an integrated reliability analysis of the PIPII cryoplant. The study evaluates both normal and abnormal operating modes, with a focus on identifying integrated scenarios that put subsystems components under stress. The conclusions of this study will help build redundancy to mitigate LINAC thermal cycling risks during planned and unplanned subsystem outages.

show abstract

Section: Study Conditionsmentioning

confidence: 99%

PIP-II cryoplant non thermal cycling updates

Creus-Prats,

Soyars,

Dhuley

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

Rotating Machinery for LHC Cryogenics: First Analysis of Reliability and Origins of Downtime

et al. 2015

View full text Add to dashboard Cite

Control of large helium cryogenic systems: a case study on CERN LHC

Pezzetti

2021

EPJ Techn Instrum

View full text Add to dashboard Cite

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 COTS equipment, such as PC, PLC and SCADA systems complying with the requested constraints. The cryogenic control system nowadays uses these frameworks and allows the joint development of supervision and control layers by defining a common structure for specifications and code documentation. Another important advantage of the CERN frameworks is the possibility to integrate different control systems into a large technical system with communication capability. Such a system is capable of sharing control variables from all accelerator apparatus in order to cope with the operation scenarios.The first implementation of this control architecture started in 2000 for the Large Hadron Collider (LHC). Since then CERN continued developing the hardware and software components of the cryogenic control system, based on the exploitation of the experience gained. These developments are always aimed at increasing the safety and improving the performance. To overcome the long-term maintenance challenges, key strategies such as the use of homogeneous hardware solutions and the optimization of the maintenance procedures were set up. They are easing the development of the control applications and the hardware configuration by allowing a structured and homogeneous approach. Furthermore, they reduce the needed manpower and minimize the financial impact of the periodical maintenance. In that context, the standardization of technical solutions both at hardware and software level simplify also the systems monitoring the operation and maintenance processes, while providing a high level of availability.

show abstract

First assessment of reliability data for the LHC accelerator and detector cryogenic system components

Cited by 3 publications

References 7 publications

PIP-II cryoplant non thermal cycling updates

PIP-II cryoplant non thermal cycling updates

Rotating Machinery for LHC Cryogenics: First Analysis of Reliability and Origins of Downtime

Control of large helium cryogenic systems: a case study on CERN LHC

Contact Info

Product

Resources

About