Category: News Page
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First Tests of Full Remote Handling for VAX Modules
Today’s LHC environment is subject to different radiation types, particle types and energy ranges. In particular, at the machine-experiment regions the main sources of radiation come from beam collisions at experiments and beam interactions. The 10-fold increase of luminosity (collisions in the experiments) foreseen for HiLumi will increase the radiation levels, and innovative approaches need…
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Recent Progress in Warm Powering: Making Steps towards Unprecedented Precision and Expanded Modularity
During the last year, several advancements have been made in the Warm Powering; among them some important steps towards implementing expanded modularity and guaranteeing unprecedented precision. In the LHC, to date, only 1-Q (1-Quadrant) power converters (LHC main and individually powered quadrupole circuits, ATLAS toroid) have been conceived with modularity and feature N+1 redundancy whereas…
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Fruitful Development Using a New Superconductor
An important milestone was achieved in June 2020 with the successful test at CERN of a demonstrator – Demo 2 – of the cold powering system for the HL-LHC magnets. Demo 2 incorporates a superconducting 60-m long power transmission line, the Superconducting Link, which will later be used to connect the HL-LHC magnets in the…
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Latest News from Collimation
The HL-LHC-WP5 teams are extremely busy in LS2 because some of the key upgrades for HL-LHC will already be used in LHC Run3: In this challenging period, when most laboratories and companies were affected by the international crisis caused by the COVID-19, the companies involved in collimation production managed to continue working efficiently, though at…
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RFD Assembly
Two prototypes of RF dipole cavities which provide horizontal crabbing for the HL-LHC were successfully built at CERN. The frequency tuning setup before the final two welds is shown in the figure below. The frequencies of both cavities were within 100 kHz (negligible) showing the surgical precision in the manufacturing techniques for such a complicated…
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Status of Magnet Production and Test Results
Nb3Sn triplet (MQXF) The most significant advancement has been the test of the third US-AUP full size magnet, named MQXFA03. The magnet reached nominal gradient with limited training and is the first magnet ready to be included in the first cold mass to be installed in the IT-String test. The test was particularly significant since…
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COVID-19 Impact on Schedule and Update on Civil Engineering Works
The COVID-19 restrictions have impacted the schedules of the LS2 and of the HL-LHC activities. Concerning the LS2 schedule, the hardware commissioning of LHC should be completed by March 2021 for all sectors except the S67, where the installation of the first 11-T dipole cryo-assembly is foreseen during the first quarter of 2021, postponing the…
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Report from the November Cost & Schedule Review
The 4th Cost & Schedule Review (CSR) of the HL-LHC project was held at CERN from 11th to 13th November 2019. The review panel was composed as usual by CERN Machine Advisory Committee (CMAC) members and ad-hoc experts. The goal of this fourth CSR was to assess the development of the baseline since the first…
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COVID-19, CERN and HL-LHC
After having observed the first cases of illness in Italy and the following isolation measures, the coronavirus SARS-Cov-2, causing the severe respiratory illness COVID-19, became a subject of major concern in Europe during February 2020. The authorities reacted with public information campaigns with a focus on physical distance, hand hygiene and when to consult a…
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Update on Collaboration Agreements and Report from the Collaboration Board at the Last Annual Meeting
After the last Collaboration Meeting in Fermilab in October 2019, there have been several important developments in collaboration matters. The 2019 LIU/HL-LHC Cost and Schedule Review outcome was very positive with inclusion in the baseline of the various pending options that were all items to be procured via collaboration agreements. That allowed the settlement of…