Radiation field benchmarking in ATLAS with Timepix
Thomas Billoud
IEAP, CTU in Prague; Department of Radiology, University Medical Center Freiburg
Abstract: In accelerator physics experiments, the radiation field has several deleterious effects on detector performance and lifetime. It causes induced radioactivity, radiation damage and background, and therefore needs to be well understood. In ATLAS, radiation field simulations are currently being done with the Geant4 Monte Carlo code, allowing a thorough knowledge of radiation throughout the experimental cavern. However, these predictions are affected by various types of uncertainties and must be benchmarked by measurements. I will present the use of Timepix detectors for this purpose, which has been achieved during LHC run 2 (2015-2018). I will explain how different aspects of the radiation environment can be measured with these pixel detectors, and how well the measurements compare with Geant4 simulations. Observed discrepancies can give insight about both the simulation and measurement methodologies, and will be discussed. Finally, I will outline how the developed Timepix signals can be applied to luminosity analysis.
Seminar takes place on Tuesday, June 1st 2021 at 2:00 PM
in the IEAP meeting room, Praha 1, Husova 240/5.
| Ing. Bartoloměj Biskup, Ph.D. seminar organizer |
doc. Ing. Ivan Štekl, CSc. director of IEAP |
doc. Dr. André Sopczak IEEE CS - NPSS chair |
NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER
IEEE Czechoslovakia section
http://www.ieee.cz/en/nps