There are 10 times more engineers and technicians at CERN than research physicists. Why?
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1 Engineering CERN CERN Accelerating science Sign in Directory In this section: Engineering There are 10 times more engineers and technicians at CERN than research physicists. Why? The physics programme (/about/physics) at CERN presents engineers with varied challenges at the forefront of technology, from the atomic scale to the colossal. Engineers build and test the machines and systems that physicists rely on, and technicians to keep these systems running smoothly, performing repairs and 1 di 6 06/10/13 15:49
2 upgrades where necessary. Building a particle accelerator, for example, can require civil engineering: digging tunnels and installing large infrastructure projects. Other engineers and technicians assemble components: radiofrequency cavities must be crafted to just the right shape and size to boost particles along accelerators; thousands of huge, custom-built electromagnets (/about/engineering/pulling-together-superconductingelectromagnets) focus particle beams and guide them around bends in circular accelerators; and the world's largest cryogenic system (/about/engineering/cryogenicslow-temperatures-high-performance) cools magnets on the Large Hadron Collider (/about /accelerators/large-hadron-collider) (LHC) to close to absolute zero, so that the wires supplying their electricity can work in a superconducting state, without losing energy to resistance. Detectors present other engineering challenges. Their components and subsystems are designed, built and tested separately, before they are joined together to work in harmony. Kilometres of wiring and thousands of electrical components make particle detectors a complex feat of engineering. Engineers are vital to CERN's activities to push the boundaries of experimental physics, they're building some of the most advanced machines in the world. Engineering Cryogenics: Low temperatures, high performance (/about/engineering/cryogenicslow-temperatures-high-performance) (/about/engineering/cryogenicslow-temperatures-high-performance) CERN's cryogenic systems cool over 1000 magnets on the LHC to temperatures close to absolute zero, where matter takes on some unusual properties Pulling together: Superconducting electromagnets (/about/engineering/pulling- 2 di 6 06/10/13 15:49
3 together-superconducting-electromagnets) (/about/engineering/pulling-togethersuperconducting-electromagnets) Particles zipping round the LHC at close to the speed of light must follow precise paths. Powerful magnets keep the beams stable, accurate and safe Powering CERN (/about/engineering/powering-cern) (/about/engineering/powering-cern) It takes a lot of electricity to power the world's largest scientific experiment but superconducting wires can help keep those energy costs down A vacuum as empty as interplanetary space (/about/engineering/vacuum-emptyinterplanetary-space) (/about/engineering/vacuum-emptyinterplanetary-space) With the first start-up of beams in 2008, the Large Hadron Collider (LHC) became the biggest operational vacuum system in the world Radiofrequency cavities (/about/engineering/radiofrequency-cavities) (/about/engineering/radiofrequency-cavities) 3 di 6 06/10/13 15:49
4 Metallic chambers along particle accelerators contain electromagnetic fields that accelerate passing particles in tightly controlled bunches Stochastic cooling (/about/engineering/stochastic-cooling) (/about/engineering/stochastic-cooling) Simon van der Meer invented the stochastic cooling technique at CERN to reduce the energy spread and angular divergence of beams of charged particles Superconductivity (/about/engineering/superconductivity) (/about/engineering/superconductivity) Below a certain temperature, materials enter a superconducting state and offer no resistance to the passage of electrical current Storing antimatter (/about/engineering/storing-antimatter) Because antimatter annihilates in a flash of energy when it interacts with regular matter, storing it presents a challenge 4 di 6 06/10/13 15:49
5 ENGINEERING Cryogenics: Low temperatures, high performance Pulling together: Superconducting electromagnets Powering CERN A vacuum as empty as interplanetary space Radiofrequency cavities Stochastic cooling Superconductivity Storing antimatter ABOUT CERN About CERN Computing Engineering Experiments How a detector works more UPDATES Preparing for tomorrow's big data 4 Oct 2013 At the ISC Big Data conference last week, Frank Würthwein of the University of California explained how CERN will manage big data in future Ukraine to become Associate Member State of CERN 3 Oct 2013 CERN Director-General Rolf Heuer and Vice Prime Minister of Ukraine Kostyantyn Ivanovych Gryschenko signed an agreement today Video: CERN computing through the ages 3 Oct 2013 A new video from the CERN IT department showcases the evolution of CERN's computing facilities since the 1950s more updates Search this site Search 5 di 6 06/10/13 15:49
6 GENERAL INFO Jobs Visits Press CERN & YOU Doing business with CERN Knowledge transfer CERN's neighbours Partnerships CONTACT CERN CH-1211 Geneva 23 Switzerland How to reach us CONNECT WITH CERN Facebook Twitter Google+ YouTube itunes U Feeds Copyright CERN di 6 06/10/13 15:49
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