Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA
A successful ground array Radio Frequency (RF)-only self-trigger on 10 high-energy cosmic ray events is demonstrated with 256 dual-polarization antennas of the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA). This RF-only capability is predicated on novel techniques for Radio Frequen...
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| creator | Monroe, Ryan Andres Romero Wolf Hallinan, Gregg Nelles, Anna Eastwood, Michael Anderson, Marin D'Addario, Larry Kocz, Jonathon Wang, Yuankun Cody, Devin Woody, David Schinzel, Frank Taylor, Greg Greenhill, Lincoln Price, Daniel |
| description | A successful ground array Radio Frequency (RF)-only self-trigger on 10 high-energy cosmic ray events is demonstrated with 256 dual-polarization antennas of the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA). This RF-only capability is predicated on novel techniques for Radio Frequency Interference (RFI) identification and mitigation with an analysis efficiency of 45\% for shower-driven events with a Signal-to-noise ratio \(\gtrsim\) 5 against the galactic background noise power of individual antennas. This technique enables more efficient detection of cosmic rays over a wider range of zenith angles than possible via triggers from in-situ particle detectors and can be easily adapted by 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 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. |
| doi_str_mv | 10.48550/arxiv.1907.10193 |
| format | Article |
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This RF-only capability is predicated on novel techniques for Radio Frequency Interference (RFI) identification and mitigation with an analysis efficiency of 45\% for shower-driven events with a Signal-to-noise ratio \(\gtrsim\) 5 against the galactic background noise power of individual antennas. This technique enables more efficient detection of cosmic rays over a wider range of zenith angles than possible via triggers from in-situ particle detectors and can be easily adapted by 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 events identified within a 40-hour observing window. 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Andres Romero Wolf ; Hallinan, Gregg ; Nelles, Anna ; Eastwood, Michael ; Anderson, Marin ; D'Addario, Larry ; Kocz, Jonathon ; Wang, Yuankun ; Cody, Devin ; Woody, David ; Schinzel, Frank ; Taylor, Greg ; Greenhill, Lincoln ; Price, Daniel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a525-7a8cfb6c1368573c092e3b4118ec743827ea76a57d36ae4faf6a69d899c2f6aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Antennas</topic><topic>Background noise</topic><topic>Cosmic ray showers</topic><topic>Cosmic rays</topic><topic>Design optimization</topic><topic>Dual polarization (waves)</topic><topic>High energy astronomy</topic><topic>Neutrinos</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Radiation counters</topic><topic>Radio frequency</topic><topic>Radio frequency interference</topic><topic>Signal to noise ratio</topic><topic>Systems design</topic><toplevel>online_resources</toplevel><creatorcontrib>Monroe, Ryan</creatorcontrib><creatorcontrib>Andres Romero Wolf</creatorcontrib><creatorcontrib>Hallinan, Gregg</creatorcontrib><creatorcontrib>Nelles, Anna</creatorcontrib><creatorcontrib>Eastwood, Michael</creatorcontrib><creatorcontrib>Anderson, Marin</creatorcontrib><creatorcontrib>D'Addario, Larry</creatorcontrib><creatorcontrib>Kocz, Jonathon</creatorcontrib><creatorcontrib>Wang, Yuankun</creatorcontrib><creatorcontrib>Cody, Devin</creatorcontrib><creatorcontrib>Woody, David</creatorcontrib><creatorcontrib>Schinzel, Frank</creatorcontrib><creatorcontrib>Taylor, Greg</creatorcontrib><creatorcontrib>Greenhill, Lincoln</creatorcontrib><creatorcontrib>Price, Daniel</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Monroe, Ryan</au><au>Andres Romero Wolf</au><au>Hallinan, Gregg</au><au>Nelles, Anna</au><au>Eastwood, Michael</au><au>Anderson, Marin</au><au>D'Addario, Larry</au><au>Kocz, Jonathon</au><au>Wang, Yuankun</au><au>Cody, Devin</au><au>Woody, David</au><au>Schinzel, Frank</au><au>Taylor, Greg</au><au>Greenhill, Lincoln</au><au>Price, Daniel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA</atitle><jtitle>arXiv.org</jtitle><date>2019-07-24</date><risdate>2019</risdate><eissn>2331-8422</eissn><abstract>A successful ground array Radio Frequency (RF)-only self-trigger on 10 high-energy cosmic ray events is demonstrated with 256 dual-polarization antennas of the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA). This RF-only capability is predicated on novel techniques for Radio Frequency Interference (RFI) identification and mitigation with an analysis efficiency of 45\% for shower-driven events with a Signal-to-noise ratio \(\gtrsim\) 5 against the galactic background noise power of individual antennas. This technique enables more efficient detection of cosmic rays over a wider range of zenith angles than possible via triggers from in-situ particle detectors and can be easily adapted by 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 events identified within a 40-hour observing window. 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| subjects | Antennas Background noise Cosmic ray showers Cosmic rays Design optimization Dual polarization (waves) High energy astronomy Neutrinos Physics - Instrumentation and Methods for Astrophysics Radiation counters Radio frequency Radio frequency interference Signal to noise ratio Systems design |
| title | Self-triggered radio detection and identification of cosmic air showers with the OVRO-LWA |
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