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An advance Krypton – CO2 cascade refrigeration unit for the Phase III Upgrade of the VELO detector at CERN.
Number: 0025
Author(s) : CONTIERO L., HAFNER A., VERLAAT B., BANASIAK K., ALLOUCHE Y.
Summary
The Vertex Locator (VELO) of the LHCb (Large‐Hadron Collider) experiment will soon experience the Phase III upgrade to fully readout events in higher irradiated environment. An unprecedent amount of radiation would lead to temperature levels not manageable by the current CO2 cooling system (2PACL) developed at CERN‐Nikhef. Therefore, a new environmental‐friendly cooling medium and working cycle must be designed to fulfill the new requirements with temperature levels expected in the range ‐60 to ‐80°C. The noble gas Krypton is the most promising coolant for the future upgrade of the Large Hadron Collider.
This work discussed a potential solution for the heat rejection that can be achieved by a cascade configuration system which comprises a CO2 cooling unit with multi‐evaporating temperature levels. Such process must be reliable and stable, regardless the amount of heat rejected which will vary throughout the lifetime of the detectors.
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Details
- Original title: An advance Krypton – CO2 cascade refrigeration unit for the Phase III Upgrade of the VELO detector at CERN.
- Record ID : 30030984
- Languages: English
- Subject: Technology
- Source: 10th IIR Conference on Ammonia and CO2 Refrigeration Technologies.
- Publication date: 2023/04/27
- DOI: http://dx.doi.org/10.18462/iir.nh3-co2.2023.0025
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