Tag: COVID-19
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Status of the Hollow e-lens
The Hollow Electron Lens (HEL) will provide, by means of a hollow electron beam overlapping over about 3 m length with the HL-LHC hadron beam, an active way to enhance particle diffusion and controlled depletion of the hadron beams tails. It is planned to be built partly as an in-kind contribution from Russia and the…
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Update on the HL-LHC Project Status – Issue 5
The progress since the last collaboration meeting in October 2020 has been truly remarkable and the project successfully passed several key milestones for the project implementation in spite of the COVID-19 restrictions. Among the many achievements, I would like to highlight here the successful validation of two pre-series MQXFA triplet quadrupole magnets by our US…
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11T First Successful Magnet Tests
Since Issue 3 of the HL-LHC CB Newsletter, three of the six series magnets were tested at cold [S1, S2, and S3], and another one [S4] is ready for testing on a test bench in SM18. On the side of production, the construction of the cold mass assembly of the first spare magnet has started.…
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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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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 the HL-LHC Project Status – Issue 4
Dear HiLumi collaborators, The period following the 9th Collaboration Meeting in Fermilab, 14-17 November 2019, has been exceptionally rich in events. The most striking has certainly been the COVID-19 emergency, with long periods of lockdown almost everywhere. Although work has resumed at CERN and in most laboratories, the consequences go far beyond the lockdown time.…