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CEC/ICMC 2025 Abstracts & Technical Program

18–22 May 2025
Peppermill Reno
US/Pacific timezone

Conference Management: Centennial Conferences

Session

C1Or2A - Large Scale Cryogenic Systems I: Operation & Design I

19 May 2025, 11:15
Capri 1

Capri 1

Conveners

C1Or2A - Large Scale Cryogenic Systems I: Operation & Design I

  • Maria Barba (Fermilab)
  • Sastry Pamidi (CAPS/FSU College of Engineering)

Presentation materials

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  1. 46. C1Or2A-01: Maintenance of SCL3 cryogenic helium plant for Korean heavy ion accelerator after 3 years operation
    Junghyun Yoo (Institute for Basic Science)
    19/05/2025, 11:15
    Contributed Oral

    The cryogenic helium plant for SCL3 section of Korean heavy ion accelerator (RAON) has been successfully operated in approximately 16,000 hours during past 3 years. Therefore, several maintenance activities are necessary to prevent any failures and keep the performance of the cryogenic helium plant. The maintenance items are divided with two parts according to its characteristics. The first...

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  2. 188. C1Or2A-02: LCLS-II Cryoplant Operational Availability: 3 Years of Operation
    Saee Vyawahare (Stanford National Accelerator Laboratory)
    19/05/2025, 11:30
    Contributed Oral

    The LCLS-II X-ray light source, powered by a 700-meter superconducting LINAC, is supported by two 4 kW @ 2.0 K cryoplants. The first cryoplant, commissioned in 2021, successfully cooled the LINAC in March 2022. This paper provides a detailed analysis of the cryoplant's operational performance and reliability over the subsequent three years of continued operation. Key metrics, including Mean...

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  3. 235. C1Or2A-03: Cold compressor performance and energy consumption improvements at Jefferson Lab’s Central Helium Liquefiers
    Brian Mastracci (Thomas Jefferson National Accelerator Facility)
    19/05/2025, 11:45
    Contributed Oral

    Jefferson Lab operates two large (18 kW at 4.2 K equivalent) central helium liquefiers (CHLs) in support of its upgraded 12 GeV electron beam accelerator. Both machines utilize full cold compression from the saturation pressure at operating temperature (approximately 2.1 K) to just over atmospheric pressure. The original plant, CHL1, was recently outfitted with a replacement subatmospheric...

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  4. 126. C1Or2A-04: TurboBrayton systems for low and high temperatures
    Mr Pierre Barjhoux (Air Liquide)
    19/05/2025, 12:00
    Contributed Oral

    In the context of the energy transition, numerous cryogenic applications - both historical and emerging - such as the long-distance transport of electricity from offshore wind generation or hydrogen mobility, require the use of compact, flexible and efficient cryogenic systems.
    The TurboBrayton technologies proposed by Air Liquide advanced Technologies for more than fifteen years have met...

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  5. 113. C1Or2A-05: Operation experience with a 1.8 K refrigeration unit during the 2024 LHC physics run at CERN
    Boyan Naydenov (CERN)
    19/05/2025, 12:15
    Contributed Oral

    More than 6’000 hours of nominal cryogenic conditions were provided for the LHC (Large Hadron Collider) physics run during 2024, allowing to reach a record integrated luminosity of 124 inverse femtobarns. The cryogenic system availability during this year was of 96.5% (target 95% to 98%). Out of the total downtime, 80% came from a series of events that led to five trips of the same 1.8 K...

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