Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 75: Detektorsysteme III

T 75.8: Talk

Wednesday, March 2, 2016, 18:30–18:45, VMP8 SR 205

Design study of the Precision Optical CAlibration Module for IceCube-Gen2 — •Joost Veenkamp, Kai Krings, Martin Jurkovic, Kilian Holzapfel, and Nicola Söker for the IceCube collaboration — Technische Universität München, Physik-Department, James-Franckstr. 1, 85748, Garching

IceCube-Gen2 consists of the lower energy Precision IceCube Next Generation Upgrade (PINGU) and the High Energy Extension. Building on experience gathered with the successful IceCube detector, improvements are made to all elements of the design, among which is the calibration system. We discuss here the Precision Optical CAlibration Module (POCAM). An inverted integrating sphere isotropizes photons emitted from an internal, appropriately placed, matrix of LEDs. The resulting emission from the POCAM consist of short, isotropic light pulses. A diode on the integrating sphere enables in-situ monitoring of the emission. The emission characteristics have been optimized by studying the geometry in a Geant4 simulation. The functionality of the POCAM inside PINGU and IceCube is being tested with ray tracing simulation. The POCAM, as an addition to the calibration system, will be able to verify the energy scale and energy resolution of PINGU, and can enhance the precision of ice models. We report on the simulation results and present the current POCAM design.