Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 12: Astroteilchenphysik: Methoden I

T 12.5: Talk

Monday, March 25, 2019, 17:00–17:15, S12

mDOM - a multi-PMT optical module for future IceCube-Extension — •Lew Classen and Alexander Kappes for the IceCube collaboration — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Münster

Located in the deep glacial ice of Antarctica IceCube is the World’s largest neutrino telescope. Originally designed for the investigation of the neutrino sky on the TeV to PeV energy scale and beyond, the lower energy threshold of its sensitivity range was expanded to ∼ 10 GeV by the DeepCore extension. Now plans for an upgrade of the detector are maturing that will further enhance IceCube’s potential both at low and high energies. Novel optical sensors will have a key role in this. Among the new designs is the so-called mDOM, a multi-PMT Digital Optical Module. Optical modules based on this concept feature an array of several small photomultipliers (PMTs) housed inside a transparent pressure vessel, resulting in several advantages with respect to the conventional single-PMT design, such as a larger sensitive area, a uniform solid angle coverage as well as enhanced intrinsic directional sensitivity. The contribution will introduce the sensor concept and give an overview of the current status of development of the device.