CERN Accelerating science

ATLAS

Data Quality Monitoring: An important step towards new physics

Data Quality Monitoring (DQM) is an important aspect of every high-energy physics experiment. In the era of LHC, when the detectors are extremely sophisticated devices, an online feedback on the quality of the data recorded is needed to avoid taking…

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LHC experiment release data in CERN's Open Data Portal

On 20 November 2014, CERN launched the Open Data Portal, making data from real collision events at the LHC experiments available for the first time to the general public. This project is part of the Organisation's policy of openness, which is…

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LHC experiments back in business at record energy

The Large Hadron Collider (LHC) started delivering physics data on 3rd of June for the first time in 27 months. After an almost two year shutdown and several months re-commissioning, the LHC is now providing collisions to all of its experiments at…

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LS1 Upgrade of the ATLAS Level-1 Central Trigger Processor

Triggering at the LHC is a challenge: during Run-1 in ATLAS, the task was to select out of the 40 million bunch crossings per second the 1000 events most promising for data analysis. The first of three levels of this selection is the Level-1 trigger…

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Focus on the Run Coordinators of the LHC Experiments (Part 2)

Following two years of maintenance and consolidation work, the Long Shutdown 1 officially ended on 5 April 2015, when the first proton beams circulated the LHC. Now the LHC experiments are getting ready to operate once more and record the first…

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Focus on the Run Coordinators of the LHC Experiments

As the preparations for Run2 are coming to an end, and the first collisions are scheduled to take place in a few weeks, the control rooms of the LHC experiments have become hives of activity, getting ready to record the first data. Run Coordinators…

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ATLAS: Preparing for LHC Run2

The ATLAS teams are wrapping things up and prepare for Run 2, as Long Shutdown 1 is coming to an end. The collaboration has made major upgrades to increase the efficiency, safety, and environmental impact of the detector; 2014 was a really busy year…

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ATLAS micromegas detectors tested in T9

The upgrade of the ATLAS detector calls for a new generation of muon detectors capable of operating in a flux of collision and background particles approximately ten times larger compared to today's conditions. The new technology of micromegas…

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ATLAS and LHCb evacuation exercises

The PH department, in partnership with the HSE, the fire brigade, and the Group Leaders In Matters Of Safety (GLIMOS), conducts annual exercises to ensure safety at CERN. This year, as part of the continuous effort to improve even more the safety…

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RD53: Development of pixel readout integrated circuits for extreme rate and radiation.

In June 2013 the LHCC has endorsed the establishment of a new R&D collaboration, RD53, to address the challenges of making readout integrated circuits for the phase 2 pixel detector upgrades of ATLAS and CMS, as well as long term developments of…

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