Projects per year
Abstract
Analysis of radio signals from cosmic-ray induced air showers has been shown to be a reliable method to extract shower parameters such as primary energy and depth of shower maximum. The required detailed air shower simulations take 1 to 3 days of CPU time per shower for a few hundred antennas. With nearly $60,000$ antennas envisioned to be used for air shower studies at the Square Kilometre Array (SKA), simulating all of these would come at unreasonable costs. We present an interpolation algorithm to reconstruct the full pulse time series at any position in the radio footprint, from a set of antennas simulated on a polar grid. Relying on Fourier series representations and cubic splines, it significantly improves on existing linear methods. We show that simulating about 200 antennas is sufficient for high-precision analysis in the SKA era, including e.g. interferometry which relies on accurate pulse shapes and timings. We therefore propose the interpolation algorithm and its implementation as a useful extension of radio simulation codes, to limit computational effort while retaining accuracy.
Original language | English |
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Article number | P09005 |
Number of pages | 27 |
Journal | JINST |
Volume | 18 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sep 2023 |
Bibliographical note
21 pages, 14 figures. Accepted for publication in JINST (Journal of Instrumentation)Keywords
- astro-ph.IM
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SRP72: SRP-Onderzoekszwaartepunt: High-energy physics (HEP@VUB).
Craps, B., D'Hondt, J., D'Hondt, J., Buitink, S., Craps, B., De Vries, K., Lowette, S. & Mariotti, A.
1/11/22 → 31/10/27
Project: Fundamental
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FWOAL991: Future of Hyperdense Radio Arrays for Cosmic Ray Detection
1/01/21 → 31/12/24
Project: Fundamental
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FWOAL944: The impact of non-linear wave propagation on the observation of cosmic neutrinos
Buitink, S., De Vries, K. & Huege, T.
1/01/20 → 31/12/23
Project: Fundamental