Guests: Frank Berghaus   
Host: Markus Voelter   Shownoter: Bastian Hundt
 To conclude our detailed look at the ATLAS experiment, this episode looks at the computing infrastructure. We start out with the trigger systems that decide, very quickly, whether the data from a particular collision is worth keeping. We then discuss the reconstruction of the event, the simulation needed to understand the background as well as the LHC Grid used distribute data and computation over the whole planet. Our guest is CERN’n Frank Berghaus.
  Introduction of Frank Berghaus 00:03:45
 
Frank Berghaus | omega tau about the History of ATLAS | omega tau about Science at ATLAS | CERN | The Atlas Experiment | LHC
  Basic Structure of LHC/Atlas and the Computing Infrastructure 00:05:25
 
Particle Physics | Particle Accelerator | Particle Detector | Beamline | Magnetig Field | Calorimeter | Atlas Calorimeter | Energy | Muon | Analog to Digital Converter | Particle Collision | Atlas-Trigger | In-Memory-Cache | Resistive Plate Chambers | Photomultiplier Tube
Reconstruction / Reduction | Data Processing | Online vs. Offline | Cern Datacenter | Bias
  After Event-Trigger Data Processing 00:23:10
 
Electron Shower | Network Switch | Cryostat | Round-Robin Schedueling | Distributed Storage | Event Horizon Telescope
  Data Processing after Storage of Events 00:42:45
 
Particle Jets | Momentum | Abstraction
  Jet Reconstruction 00:51:25
 
Topological Clustering | Cone Algorithm
  Processing and Reprocessing / CERN Computing Infrastructure 01:03:55
 
Luminosity | High Luminosity LHC | Vertex Detector
  LHC Computing Grid 01:12:40
 
Worldwide LHC Computing Grid
  Analysis of Events and Computing Infrastructure 01:24:05
 
Simulation | Field Theory | Differential Equations | Photon | ROOT Particle Physics Software | Machine Learning | GPU | Multithreading | Supercomputer
  Data Organization and End 02:00:25
 
Relational Database | Namespace | Tape Storage | Cloud Computing | Distributed Computing | Standard Model
  CERN File System 02:18:45