High-Luminosity LHC (HL-LHC)

The High-Luminosity Large Hadron Collider (HL-LHC) project aims to crank up the performance of the LHC in order to increase the potential for discoveries after 2028. The objective is to increase luminosity by a factor of 10 beyond the LHC’s design value. The project is led by CERN with the support of an international collaboration of 44 institutions in 20 countries.
Luminosity is an important indicator of the performance of an accelerator: it is proportional to the number of collisions that occur in a given amount of time. The higher the luminosity, the more data the experiments can gather to allow them to observe rare processes.

HL-LHC IT String advancements and challenges for 2024

The commissioning of key equipment on the metallic platform is now completed.

Issue 47
03 May, 2024

UK delivers first state-of-the-art cryomodule to CERN for the High-Luminosity LHC upgrade

The first pre-series cryomodule equipped with superconducting Radio Frequency Dipole (RFD) crab cavities was completed in October 2023 at Science and Technology Facilities Council (STFC)’s Daresbury Laboratory as a collaboration between HL-LHC-UK and CERN

Issue 46
09 January, 2024

Great beginnings for HL-LHC IT String’s cryogenic system cold commissioning

This summer, the cryogenic system of the future magnet test bench passed its first commissioning phase with success

Issue 45
20 September, 2023

HL-LHC IT String steadily advances towards commissioning

Sound advancements made on the HL-LHC IT String as key equipment is now installed on the metallic platform.

Issue 44
24 May, 2023

New measurement technique to probe the inside of a cryostat

Capable of better tracking the position of cold masses inside their cryostat, the new technique tested at Fermilab will equip all the HL-LHC's triplet quadrupoles and crab cavities.

Issue 44
05 July, 2023

Beam Gas Curtain installed in the Large Hadron Collider

Non-invasive beam profile monitor using supersonic gas jet furthers our understanding of the beam dynamics and supports new discoveries.

Issue 43
14 March, 2023

54 magnets: The High-Luminosity LHC receives its first in-kind contribution

The completion of the High Order Corrector Magnet project was only made possible by the collaborative efforts of INFN, CERN, and industry.

Issue 43
14 March, 2023

Cryogenic Distribution Line, Demineralised Water System, Circuit Disconnector Boxes... The HL-LHC IT String is taking shape

With its first major equipment now in place and infrastructure nearly installed, HL-LHC’s test bed is on track to start operation in 2024.

Issue 42
07 December, 2022

The HL-LHC’s IT String home gets ready

The new metallic structure, installed in SM18, will be part of the IT String Test Stand. It will house the main components of the HL-LHC powering systems, due for arrival at the end of 2022

Issue 40
03 June, 2022

United States crab cavity program springs forward into production after successful test of prototypes

Crab cavities are critical to increase the number of interactions. After successful prototyping and testing, the US programme has entered series production.

Issue 38
01 December, 2021