Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 37: Astroteilchenphysik: Methoden II

T 37.1: Vortrag

Dienstag, 26. März 2019, 16:00–16:15, S12

Efficiency determination of the Wavelength shifting Optical Module (WOM) for IceCube — •John Rack-Helleis, Peter Peiffer, Sebastian Böser, and Florian Thomas for the IceCube collaboration — Johannes Gutenberg Universität Mainz

The Wavelength shifting Optical Module (WOM) consists of a cylindrical tube coated in wavelength shifting paint with photomultiplier tubes(PMT) optically attached at each end.

Light hitting the surface of the tube is absorbed, shifted towards larger wavelengths and guided to the PMT via total internal reflection within the walls of the tube.

This design ensures a significantly larger photo detection area compared to the PMT alone. At the same time the noise, which scales with the detection area of the given PMT, is not increased. Additionally this detector is sensitive to light in the UV range, making it well suited for the detection of Cherenkov light.

This makes the WOM a very promising candidate for future extensions of the IceCube Neutrino Observatory at the South Pole.

In this talk I will present the current status of modeling and understanding the light propagation and detection efficiency of the WOM.