Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 85: Astroteilchenphysik: Methoden IV

T 85.8: Vortrag

Donnerstag, 28. März 2019, 17:45–18:00, S12

Development of a UV-calibration device for the SpiceCore hole — •Jannes Brostean-Kaiser für die IceCube Kollaboration — Desy Zeuthen

IceCube, the biggest neutrino detector in the world shall get an upgrade in the next years. For this upgrade and the planned enlarged detector IceCube-Gen2 new optical modules have been developed. One of these optical modules (WOM) uses wavelength-shifting and light-guiding techniques to measure Cherenkov photons in the UV-range. To understand the efficiency of this new module the absorption and scattering lengths of UV-light in the South Pole ice have to be measured. The meausrement will be done in the SpiceCore hole. The 1751 m deep hole was drilled for environmental studies and filled with Estisol 140. To measure the ice properties a calibration device will be let down into the hole and emit UV-light. On the other side of the device a UV-sensitive detector measures the UV-photons that are scattered back. From the time distribution of this scattered photons the scattering and absorption lengths can be calculated. In this talk the development and results of such an in-situ measurement device will be presented.