Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

EP: Fachverband Extraterrestrische Physik

EP 1: Near-Earth Space and Space Weather

EP 1.3: Vortrag

Montag, 26. Februar 2024, 15:20–15:40, ELP 1: HS 1.22

The CHerenkov Atmospheric Observation System (CHAOS) for the 2024 Balloon Experiments for University Students (BEXUS) Campaign — •Hannes Ebeling, Ava Pohley, Pierre Bornfleth, Hannah Sophie Grimm, Janna Martens, Jasper Mess, Justus Mickausch, Clara Pittschellis, Nicolas Rohrbeck, and Tom Ruge — Christian-Albrechts-Universität, Kiel, Germany

The Earth is continuously exposed to high-energy charged particles, so-called Galactic Cosmic Rays (GCRs). When these particles hit the Earth’s atmosphere, they create a cascade of secondary particles. CHAOS uses a new detector design developed at the Department of Extraterrestrial Physics at Kiel University by a team of students to measure the different particle species of the primary GCRs above the so-called Regener-Pfotzer Maximum. To perform these measurements a combination of multiple solid state detectors and a bismuth germanium oxide (BGO) scintillator is used to measure the energy depositions of the particles. The use of an additional Cherenkov aerogel scintillator allows to separate between electrons and protons. Because electrons are much lighter than ions, electrons with energies above ∼ 1.1 MeV will trigger the Cherenkov detector whereas ions with the same energy are much slower and will not trigger the Cherenkov detector. In this talk we present the design and functionality of CHAOS as well as its current status. CHAOS is supposed to fly on a stratospheric balloon as part of the BEXUS program in fall 2024. More information about CHAOS can be found at https://www.bexus.org/.

Keywords: Galactic Cosmic Rays; Balloon; Atmosphere; Cherenkov; Scintillator