The beam screen for the High-Luminosity LHC will be installed by 2024 in the aperture of the inner triplet superconducting magnets near ATLAS and CMS, CERN Updates.
After having undergone several high intensity beam impacts at the HiRadMat facility in August, the TDIS HRMT-45 module was disassembled in November by the EN/STI-TCD and EN/SMM-MRO teams in the bunker 867-R-P58 for the post-irradiation analysis. The ultimate goal is to verify that all the equipment components remain fully functional after the high thermomechanical loads they were subjected to during the experiment. Such loads were equivalent to those likely to occur inside the TDIS during future operation with HiLumi beams. Given the significant radioactivity of the module, some dismantling activities are to be performed by means of robots in order to minimize the dose taken by personnel. The robot appearing in the picture is the in-house developed CERNbot, which was able to unfasten the tank upstream and downstream transitions while being operated remotely from another room. This was possible partly thanks to some robot-friendly solutions implemented in the TDIS HRMT-45 design agreed with MRO. The next step following to the tank opening is the metrology of the jaws, which flatness level measurement is expected to return similar values with respect to the pre-test condition. More pictures are available in CDS.
Developed as an upgrade of the current TDI (target dump injection) located at point 2 and point 8 of the accelerator, the TDIS will provide a higher intensity absorption capability for the High-Luminosity LHC, CERN News.
The HL-LHC annual meeting, held on 15 October, had a particular significance this year: we’re halfway between the beginning of the project in 2010 and the scheduled start-up of the machine for physics in 2026..., CERN Opinion.
The High-Luminosity LHC has reached its halfway point. The second-generation LHC project was launched eight years ago and is scheduled to start up in 2026, eight years from now. CERN Updates
In July, the fourth short model of the Nb3Sn quadrupole for the HL-LHC interaction regions was tested in SM18, Accelerating News #26.
Today the CERN prototype 2.2 m CCT was lowered into the cluster D test cryostat. Cold testing should start next week.
Following the 7th HL-LHC Annual Meeting held in Madrid on 13-17 November 2017, the 8th HL-LHC Collaboration Meeting will be organised at CERN, Geneva, Switzerland from 15 to 18 October 2018.
This Annual Meeting will see the participation of all main HL-LHC contributors: the US HL-LHC AUP, involving five laboratories*, KEK-JP, CEA-FR, CIEMAT-ES, INFN-IT, the British Institutes**, Uppsala University-SE, TRIUMF-CA, IHEP-CN. Some parties willing to collaborate with HL-LHC with in-kind contributions will also be present: BINP-RU, Lapland UAS-FI, and many other Institutes.
The meeting will be based on the traditional format of plenary and work package parallel sessions, and aims to review technical progress, performance reach, and planning coherence, as well as the first detailed de-installation exercise (the removal of current LHC Interaction Region magnets, cryogenics and other equipment to make way for new hardware). Progress of many in-kind contributions will also be discussed. The meeting will address the recommendations of the recent 3rd C&SR, held at CERN in the spring 2018, which was followed by a project marking point: the HL-LHC Ground Breaking ceremony which took place on 15 June at two LHC sites, Points 1&5. A visit to one of these sites is planned.
Additionally, this Annual Meeting will host the 8th meeting of the HL-LHC Collaboration Board where the approved in-kind contributions will be reviewed while the last one will be signed.
Participation is by invitation only, and registration is mandatory and without fee.
Furthermore, two satellite workshops (WP3 Magnets / WP5 Collimation) are planned after the Collaboration Meeting on Friday 19 October 2018. More information will be available soon.
* BNL, FNAL, LBNL, SLAC, JLAB and ODU. ** Uni. of Manchester, Uni. of Lancaster, Uni. of Liverpool, Uni. of Royal Holloway, Uni. of Southampton, Uni. of Huddersfield, STFC-ASTeC Daresbury, Univ. of Dundee.
The construction of the 5.5-m long 11T dipole prototype was completed in May this year after several years of intense work. Read more: Accelerating News, Issue #25.
The earthmovers are at work on the ATLAS site in Meyrin and at CMS in Cessy, digging the new shafts for the High-Luminosity LHC (HL-LHC), CERN Bulletin.
The first test of superconducting crab cavities to rotate a beam of protons was performed on 23 May using a beam from CERN’s Super Proton Synchrotron (SPS) accelerator. Read more: Accelerating News, Issue #25.
The groundbreaking ceremony for the launch of the civil engineering works took place on Friday 15 June 2018 with the presence of the CERN management, the French and Swiss Authorities and the CERN Council. Read more: Accelerating News, Issue #25.
The crab cavities, used to rotate the beams of protons, have been successfully tested on 23 May – a world first, CERN Bulletin.
Advanced radio-frequency crab cavities are to be tested for the first time in a proton beam, a vital step towards the high-luminosity LHC upgrade, CERN Courier, Vol.58, Number 4, May 2018.