Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Neutrino-Astronomie I

T 11.6: Talk

Monday, March 25, 2019, 17:15–17:30, S10

Development of an Emitter for the Acoustic Geometry Calibration of the upcoming IceCube-Upgrade — •Shefali Shefali, Dirk Heinen, Frederic Jonske, Martin Rongen, Roxanne Turcotte, Christopher Wiebusch, and Simon Zierke for the IceCube collaboration — Physics Institute 3B, RWTH Aachen University, NRW, Germany

The IceCube Neutrino Observatory is a cubic kilometer scale neutrino detector, capable of detecting neutrinos of energies ranging from a few GeV to PeV and above. IceCube-Gen2 is a planned large-scale upgrade to enhance the sensitivity for the highest energy neutrinos. As a first step, the IceCube-Upgrade is being prepared. It involves inclusion of additional sensor strings and calibration devices in the central detector region. IceCube-Gen2 will entail larger spacing of optical sensor modules, for which the current calibration scheme of the geometry by means of trilateration by light becomes challenging. As a promising alternative method, trilateration by acoustic signals is being developed. This system will consist of acoustic receivers incorporated inside the optical sensor modules, and stand-alone acoustic emitters. The working principle of the acoustic system will be verified and optimized at shorter distances in agreement with the optical signals during the IceCube-Upgrade. In this talk, we will discuss the concept and design of the acoustic emitters.