Linac 4

Linear accelerator 4 (Linear 4) is designed to boost negative hydrogen ions to high energies. It is scheduled to become the source of proton beams for the Large Hadron Collider (LHC) after the long shutdown in 2017-18. 

27 results

Accelerator Report: Protons or Easter eggs? Let’s hope for both

Beam commissioning is progressing well across the entire accelerator complex, but challenges have arisen, in particular in Linac4, highlighting the complexities involved

News
Accelerators
28 March, 2024

Accelerator Report: Advancing smoothly through recommissioning and overcoming challenges

The injection of the first protons into the LHC is scheduled for 11 March, but could be brought forward by a few days if all goes well

News
Accelerators
29 February, 2024
Accelerators
News
29 February, 2024

CERN’s accelerators gear up for action after the winter maintenance break

A new physics run is about to begin! The first particle beams should reach the Large Hadron Collider (LHC) on 11 March

News
Accelerators
22 February, 2024
Accelerators
News
22 February, 2024

Accelerator Report: The accelerator complex gears up for action after the yearly winter maintenance break

The first beams are already circulating in the Linac4 and PS Booster and should reach the LHC on 11 March. A new physics run is about to begin!

News
Accelerators
15 February, 2024
Accelerators
News
15 February, 2024

Accelerator Report: Exploring performance potential for future benefit

The year-end technical stop (YETS) officially started on 30 October, with promising performance tests in Linac4. The injection of the first 2024 LHC beam is scheduled for 11 March 2024

News
Accelerators
09 November, 2023
Accelerators
News
09 November, 2023

A spring awakening: CERN’s accelerators gear up for 2023

Following the winter shutdown, the injectors and accelerators are preparing for the 2023 data-taking season

News
Accelerators
29 March, 2023

Accelerator Report: The CERN accelerator complex is awakening from hibernation

The last LHC beam of 2022 was dumped in the early morning of Monday, 28 November; 17 weeks later, on Monday, 27 March 2023, we plan to inject the first beam of the year into the LHC

News
Accelerators
09 March, 2023

LS2 Report: Review of a rather unusual year

COVID-19 has undoubtedly had an impact on the activities and schedule of LS2. Nevertheless, the accelerators are now starting up again

News
Accelerators
14 December, 2020
Accelerators
News
14 December, 2020

LS2 Report: CERN’s newest accelerator awakens

Linac 4 has taken over from the retired Linac 2 as the first accelerator in the LHC injection chain

News
Accelerators
20 August, 2020
Accelerators
News
20 August, 2020

The first accelerators are back in action

It’s the end of Long Shutdown 2 for the PS Booster, the first accelerator to be recommissioned, alongside Linac 4

News
Accelerators
08 July, 2020
Accelerators
News
08 July, 2020

LS2 Report: Linac4 knocking at the door of the PS Booster

During a two-month test run that started at the end of September, Linac4 will send negative hydrogen ions up to the door of the PS Booster

News
Accelerators
29 October, 2019
Accelerators
News
29 October, 2019