Upgrading the OVRO-LWA for improved cosmic ray detection capabilities
Plant K, Hallinan G, Romero-Wolf A, Monroe R, Kocz J, Nelles A, Anderson M, Eastwood M, D'Addario L, Woody D, Lamb J, Carvalho W, Belov K (2021)
Publication Type: Conference contribution
Publication year: 2021
Journal
Publisher: Sissa Medialab Srl
Book Volume: 358
Conference Proceedings Title: Proceedings of Science
Event location: Madison, WI, USA
Abstract
The Owens Valley Long Wavelength Array has made self-triggered radio detections of cosmic-ray air showers (Monroe et al. 2019 submitted, see Romero-Wolf et al. proceedings PoS(ICRC2019)405) using 256 irregularly-spaced dual-polarization dipole antennas with ∼60 MHz bandwidth centered around 55 MHz and maximum antenna separations of 1.5 km. Over the next two years, an upgrade to 352 antennas up to 2.6 km apart and new signal processing infrastructure will expand the capabilities of the array, including its sensitivity to cosmic ray air showers. In addition to the benefit of a larger area, wider antenna separations will improve the sensitivity to inclined events, thus increasing the detection rate of higher-energy cosmic rays. Furthermore, an observing mode with hierarchical beam-forming (grouping subsets of dipoles in-phase) will increase the detection rate of lower-energy cosmic rays. Detecting air showers requires response to ten-nanosecond-timescale signals, coincidenced across the array, and thus requires novel FPGA firmware. This poster will focus on the preliminary design of the new digital signal processing system.
Authors with CRIS profile
Involved external institutions
California Institute of Technology (Caltech)
United States (USA) (US)
Jet Propulsion Laboratory
United States (USA) (US)
University of São Paulo / Universidade de São Paulo (USP)
Brazil (BR)
Humboldt-Universität zu Berlin
Germany (DE)
United States (USA) (US)
Jet Propulsion Laboratory
United States (USA) (US)
University of São Paulo / Universidade de São Paulo (USP)
Brazil (BR)
Humboldt-Universität zu Berlin
Germany (DE)
How to cite
APA:
Plant, K., Hallinan, G., Romero-Wolf, A., Monroe, R., Kocz, J., Nelles, A.,... Belov, K. (2021). Upgrading the OVRO-LWA for improved cosmic ray detection capabilities. In Proceedings of Science. Madison, WI, USA: Sissa Medialab Srl.
MLA:
Plant, Kathryn, et al. "Upgrading the OVRO-LWA for improved cosmic ray detection capabilities." Proceedings of the 36th International Cosmic Ray Conference, ICRC 2019, Madison, WI, USA Sissa Medialab Srl, 2021.
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