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Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA

Monroe, Ryan and Romero Wolf, Andres and Hallinan, Gregg and Nelles, Anna and Eastwood, Michael and Anderson, Marin and D'Addario, Larry and Kocz, Jonathon and Wang, Yuankun and Cody, Devin and Woody, David and Schinzel, Frank and Taylor, Greg and Greenhill, Lincoln and Price, Daniel (2020) Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 953 . Art. No. 163086. ISSN 0168-9002. doi:10.1016/j.nima.2019.163086. https://resolver.caltech.edu/CaltechAUTHORS:20190725-161508442

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Abstract

A successful ground array Radio Frequency (RF)-only self-trigger is demonstrated with 256 dual-polarization antennas of the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA), yielding 10 high-energy cosmic ray candidates. This RF-only capability is predicated on novel techniques for Radio Frequency Interference (RFI) identification and mitigation with an analysis efficiency of approximately 45% for shower-driven events with a Signal-to-noise ratio 5 against the galactic background noise power of individual antennas. Radio self-triggering enables more efficient detection of cosmic rays over a wider range of zenith angles than possible via triggers from in-situ particle detectors and the method presented here can be easily adapted to neutrino experiments relying on RF-only detection. This paper discusses the system design, RFI characterization and mitigation techniques, and initial results from 10 cosmic ray candidate events identified within a 40-hour observing window. A design for a future optimized commensal cosmic-ray detector for the OVRO-LWA is presented, as well as recommendations for developing a similar capability for other experiments – these designs either reduce data-rate or increase sensitivity by an order of magnitude for many configurations of radio instruments.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.nima.2019.163086DOIArticle
https://arxiv.org/abs/1907.10193arXivDiscussion Paper
ORCID:
AuthorORCID
Hallinan, Gregg0000-0002-7083-4049
Eastwood, Michael0000-0002-4731-6083
Anderson, Marin0000-0003-2238-2698
Kocz, Jonathon0000-0003-0249-7586
Schinzel, Frank0000-0001-6672-128X
Taylor, Greg0000-0001-6495-7731
Greenhill, Lincoln0000-0003-4912-5974
Price, Daniel0000-0002-4716-4235
Additional Information:© 2019 Published by Elsevier B.V. Received 3 September 2019, Revised 19 October 2019, Accepted 4 November 2019, Available online 13 November 2019. This material is based in part upon work supported by the National Science Foundation under Grant AST-1654815 and AST-1212226, as well as the NASA Solar System Exploration Virtual Institute cooperative agreement 80ARC017M0006 and the DFG grant NE2031/1-1. Gregg Hallinan acknowledges the support of the Alfred P. Sloan Foundation and the Research Corporation for Science Advancement. The OVRO-LWA project was initiated through the kind donation of Deborah Castleman and Harold Rosen. Part of this work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Andres Romero-Wolf and Gregg Hallinan thank the Caltech/JPL President's and Director's Research and Development Fund. Copyright 2019. All rights reserved.
Funders:
Funding AgencyGrant Number
NSFAST-1654815
NSFAST-1212226
NASA80ARC017M0006
Deutsche Forschungsgemeinschaft (DFG)NE2031/1-1
Alfred P. Sloan FoundationUNSPECIFIED
Research CorporationUNSPECIFIED
NASA/JPL/CaltechUNSPECIFIED
JPL President and Director's FundUNSPECIFIED
Subject Keywords:Cosmic ray; Self-trigger
DOI:10.1016/j.nima.2019.163086
Record Number:CaltechAUTHORS:20190725-161508442
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190725-161508442
Official Citation:Ryan Monroe, Andres Romero Wolf, Gregg Hallinan, Anna Nelles, Michael Eastwood, Marin Anderson, Larry D’Addario, Jonathon Kocz, Yuankun Wang, Devin Cody, David Woody, Frank Schinzel, Greg Taylor, Lincoln Greenhill, Daniel Price, Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 953, 2020, 163086, ISSN 0168-9002, https://doi.org/10.1016/j.nima.2019.163086. (http://www.sciencedirect.com/science/article/pii/S0168900219314263)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97425
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Jul 2019 18:07
Last Modified:16 Nov 2021 17:31

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