The CEA teams in collaboration with those of ESS worked for many months on the conditioning of the RFQ delivered to ESS in 2019. On 28 July 2021, the conditioning was successfully completed with 110% of the nominal operating power and the beam passed through the RFQ for the first time on 26 November.
The conditioning of the RFQ marks the end of a multi-year process at CEA for this central component of the future ESS linear accelerator in Sweden.
Two state-of-the-art instruments, GLAD and COCOTIER, were designed and built at Irfu in the last few years and are now operational in the R3B experimental room of the GSI heavy ion accelerator (Darmstadt, Germany). Both are intended to be part of the equipment that will be used at FAIR, the new machine under construction at the GSI site. GLAD is a large acceptance spectrometer for the analysis of relativistic radioactive heavy ion beam reactions. It was installed on site in 2015 and saw the beam for the first time in the fall of 2018. In some experiments, these beams will have interacted upstream on the COCOTIER liquid hydrogen target. The latter, funded in part by the Agence Nationale de la Recherche, has just been used for the first time in an experiment in March 2021. These two pieces of equipment are key elements for measuring the properties of nuclei at the limit of nuclear stability and allow current nuclear models to evolve towards more predictive ones.
The large aperture (90 mm) quadrupole superconducting electromagnet for the CERN HL-LHC project, manufactured and tested at 4.2 K by the IRFU teams, reached its nominal gradient of 120 T/m (defined for 1.9 K) the 5th of March, 2021. These very good results validate the design and manufacturing process proposed by the IRFU engineers and were the subject of a technology transfer to the industrial companies working on the European project QuaCo (QUAdrupoleCOrector). This magnet was produced as part of the LHC upgrade in luminosity project called HiLumi-LHC. These NbTi magnets are part of the insertion magnets. They may be placed upstream and downstream of detectors such as ATLAS and CMS at the center of which the 2 beams cross to make the collisions. They should ensure the compression of the beams before collisions and thus contribute to increasing the integrated luminosity of the HL-LHC (i.e. the total number of collisions), up to ten times greater than the initial nominal value of the LHC.
The CEA teams in collaboration with those of ESS worked for many months on the conditioning of the RFQ delivered to ESS in 2019. On 28 July 2021, the conditioning was successfully completed with 110% of the nominal operating power and the beam passed through the RFQ for the first time on 26 November.
The conditioning of the RFQ marks the end of a multi-year process at CEA for this central component of the future ESS linear accelerator in Sweden.
The CEA teams in collaboration with those of ESS worked for many months on the conditioning of the RFQ delivered to ESS in 2019. On 28 July 2021, the conditioning was successfully completed with 110% of the nominal operating power and the beam passed through the RFQ for the first time on 26 November.
The conditioning of the RFQ marks the end of a multi-year process at CEA for this central component of the future ESS linear accelerator in Sweden.
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