SMuK 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 93: Exp. Methods – Scint., HESS, Auger
T 93.4: Vortrag
Mittwoch, 22. März 2023, 18:15–18:30, POT/0081
Intensity Interferometry at H.E.S.S. - Technical Setup — Naomi Vogel1, •Andreas Zmija1, Gisela Anton1, Stefan Funk1, Alison Mitchell1, Frederik Wohlleben2, and Adrian Zink1 — 1Friedrich-Alexander-Universität Erlangen-Nürnberg, ECAP — 2MPG Heidelberg
Intensity Interferometers are used to determine the angular diameter of stars. Imaging Atmospheric Cherenkov Telescopes are provided with technical setups to perform intensity interferometry (II) measurements. Our developed II setup was designed to be mounted to the lid of the Phase I H.E.S.S. telescopes in Namibia. It includes a 45 degree angled mirror and an optical path with a 2 nm interference filter leading to two photomultipliers whose photo currents are measured and then correlated. This enables us to handle high photon count rates. The data is then transferred via optical fibres to our workstation where the analysis is done after the measurements. The setup is equipped with motors in order to move each element individually which enables us to have a live pointing correction. In this contribution we will present the structure of our technical setup, how to include it between gamma ray observations and our future plans.