AtmoHEAD: Atmospheric Monitoring for High-Energy Astroparticle Detectors

Session

Monday afternoon 2

10 juin 2013, 16:15

CEA Saclay

Présidents de session

Monday afternoon 2

• Fabian Schussler (CEA/Irfu)

15. Simulations of detector arrays and the impact of atmospheric parameters

Dr Konrad Bernlöhr (MPIK Heidelberg)

10/06/2013 16:15

Simulations, modeling, and reconstruction

Talk

In Monte-Carlo simulations of detector arrays on the ground (here mainly arrays of Cherenkov telescopes), the atmosphere enters in several ways: in the development of the particle showers, in the emission of light by shower particles, and in the propagation of Cherenkov light (or fluorescence light or of particles) down to ground level. Relevant parameters and their typical impact...

17. Nitrogen fluorescence in air for observing extensive air showers

Dr Bianca Keilhauer (Karlsruhe Institute of Technology)

10/06/2013 17:00

Simulations, modeling, and reconstruction

Talk

Extensive air showers initiate the fluorescence emissions from nitrogen molecules in air. The UV-light is emitted isotropically and can be used for observing the longitudinal development of extensive air showers in the atmosphere over many kilometers. This measurement technique is well established since it has been used since many decades by several cosmic ray experiments. However, a...

6. Aerosol effect on multiple scattering for light propagation in the atmosphere

Joshua Colombi (LPSC, CNRS/IN2P3, UJF-INPG)

10/06/2013 17:30

Simulations, modeling, and reconstruction

Talk

When cosmic rays enter the atmosphere, they induce extensive air showers composed of secondary particles. Charged particles excite atmospheric nitrogen molecules, and these molecules then emit fluorescence light in the 300-400 nm range. In cosmic ray observatories as the Pierre Auger Observatory or Telescope Array, the atmosphere is used as a giant calorimeter, where the fluorescence light is...