Measurement of South Pole ice transparency with the IceCube LED calibration system
IceCube Collaboration: M. G. Aartsen, R. Abbasi, Y. Abdou, M., Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, J. Auffenberg, X., Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, S. Bechet, J., Becker Tjus, K.-H. Becker, M. Bell, M. L. Benabderrahmane
TL;DR
This paper introduces a new method for modeling light propagation in Antarctic ice using in-situ light source data, crucial for improving IceCube neutrino detection accuracy.
Contribution
It presents a novel fitting technique for ice optical properties based on in-situ calibration data, enhancing the understanding of light behavior in the detector environment.
Findings
Derived scattering and absorption coefficients as functions of depth
Comparison shows improved agreement between data and simulations
Enhanced model accuracy for neutrino event reconstruction
Abstract
The IceCube Neutrino Observatory, approximately 1 km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in-situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown.
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