Computer Centre : LHC CERN visit Photo 6

The LHC is running, protons racing round the 27km ring 11,245 times a second, that is 99.9% the speed of light and around 600 million collisions take place every second... and the experiments capture these collisions in their detectors, just like enormous digital cameras... but then comes the problem, how do you store all of that information? Well, the short answer is you don't. Each of the experiments has a trigger a system, a filter, that decides whether there is something interesting in each collision and either dumps it,  or stores for later examination by mere humans. And, the data that is saved, ends up here, The Cern Computing Centre. These images don't really give a real feel for just how large this place is. 

Our new 3D school show "LHC 3D : It's All Down To Gravity" will be launched shortly.

Posted via email from dlf's posterous