During this year's CERN excursion, our students witnessed the generation of superfluid helium (He-II) in the Cryolab, seeing some of its astonishing properties with their own eyes. We also visited a large cryogenic test facility for the LHC high-luminosity upgrade in SM18, and the new CO2 cooling system for ATLAS.
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On 25-27 March 2025, our team coordinated and contributed to the essential discussions between experts in the field on the baseline design of the ET-LF tower integration in the cryogenic interferometer of the Einstein Telescope. The workshop took place at the IJCLab on the Orsay campus of the Paris-Saclay University and is the second of its kind.
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The Einstein Telescope German Community Annual Meeting 2025 took place at DESY, Hamburg, on January 30-31.
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On 28 January 2025, our yearly excursion took place to the Tritium Laboratory and the KATRIN experiment at Campus North within the „Kältetechnik A“ and „Cryogenic Engineering“ lectures.
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Our Expertise
Current Research Topics
The Einstein Telescope (ET) is a proposed underground infrastructure to host a third-generation, gravitational-wave observatory. It builds on the success of current, second-generation laser-interferometric detectors Advanced Virgo and Advanced LIGO, whose breakthrough discoveries of merging black holes and neutron stars over the past 5 years have ushered scientists into the new era of gravitational-wave astronomy.
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Refrigeration processes operated with wide-boiling refrigerant mixtures known as cryogenic mixed-refrigerant cycles (CMRC) are an attractive technology for providing cooling capacity in the temperature range between 80 K and 200 K.
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The properties of cryogenic fluid mixtures are of fundamental importance for the development and optimisation of closed-cycle cryogenic cooling systems needed for applications of high-temperature superconductivity (HTS) and for the liquefaction or re-liquefaction of low-boiling fluids.
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Students
