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When high-energy particles interact in dense media to produce a particle shower, most of the shower energy is deposited in the medium as heat. This causes the medium to expand locally and emit a shock wave with a medium-dependent peak…

Instrumentation and Methods for Astrophysics · Physics 2012-01-04 Justin Vandenbroucke

Interactions of ultrahigh energy neutrinos of cosmological origin in large volumes of radio-transparent South Polar ice can be detected via coherent Cherenkov emission from accompanying electromagnetic showers. A pilot experiment employing…

Astrophysics · Physics 2007-05-23 George M. Frichter , John P. Ralston , Douglas W. McKay

The nature of the radio-wave radiation generated by particle cascades in both the Earth's atmosphere and dense media such as ice has, historically, been much debated. This situation changed in the early 2010's, with the community converging…

High Energy Astrophysical Phenomena · Physics 2022-01-26 Clancy W. James

In recent years, arrays of radio antennas operating in the MHz regime have shown great potential as detectors in astroparticle physics. In particular, they fulfill an important role in the indirect detection of ultra-high energy cosmic…

Instrumentation and Methods for Astrophysics · Physics 2023-08-17 Max Büsken , Tomáš Fodran , Tim Huege

We present early results from our multi-wavelength follow-up campaigns of the AKARI Deep Fields at the North and South Ecliptic Poles. We summarize our campaigns in this poster paper, and present three early outcomes. (a) Our AAOmega…

The Auger Engineering Radio Array (AERA) is currently detecting cosmic rays of energies at and above 10^17 eV at the Pierre Auger Observatory, by triggering on the radio emission produced in the associated air showers. The radio-detection…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 J. L. Kelley

The recent demonstration by the CODALEMA Collaboration of the ability of the radio-detection technique for the characterization of UHE cosmic-rays calls for the use of this powerful method for the observation of UHE neutrinos. For this…

Instrumentation and Methods for Astrophysics · Physics 2010-04-30 Daniel Ardouin , Didier Charrier , Pascal Lautridou , Olivier Martineau-Huynh , Olivier Ravel , Xiang-Ping Wu , Meng Zhao

The FPGA/NIOS FIR filter based on linear prediction (LP) to suppress radio frequency interference (RFI) has been installed in several radio stations in the Auger Engineering Radio Array (AERA) experiment. AERA observes coherent radio…

Instrumentation and Detectors · Physics 2019-08-14 Zbigniew Szadkowski , D. Głas , C. Timmermans , T. Wijnen

For electromagnetic cascades induced by electron-neutrinos in South Pole ice, the effective volume per detector element (phototube, radio antenna, or acoustic transducer) as a function of cascade energy is estimated, taking absorption and…

Astrophysics · Physics 2011-05-23 P. B. Price

We discuss the radar detection technique as a probe for high-energy cosmic neutrino induced particle cascades in a dense medium like ice. With the recent detection of high-energy cosmic neutrinos by the IceCube neutrino observatory the…

Instrumentation and Methods for Astrophysics · Physics 2015-11-30 Krijn D. de Vries , Kael Hanson , Thomas Meures , Aongus O'Murchadha

Ultra-high energy cosmic rays (UHECRs) are the most energetic particles observed and serve as a probe of the extreme universe. A key question to understanding the violent processes responsible for their acceleration is identifying which…

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…

The High-Altitude Water Cherenkov experiment (HAWC) observatory is located 4100 meters above sea level. HAWC is able to detect secondary particles from extensive air showers (EAS) initiated in the interaction of a primary particle (either a…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 E. Bourbeau , T. Capistrán , I. Torres , E. Moreno

We present deep polarimetric observations at 154 MHz with the Murchison Widefield Array (MWA), covering 625 deg^2 centered on RA=0 h, Dec=-27 deg. The sensitivity available in our deep observations allows an in-band, frequency-dependent…

With the aim to optimize and test the method of acoustic detection of ultra-high energy neutrinos in underwater telescopes a compact acoustic transmitter array has been developed. The acoustic parametric effect is used to reproduce the…

Instrumentation and Detectors · Physics 2015-06-11 S. Adrián-Martínez , M. Ardid , M. Bou-Cabo , G. Larosa , C. D Llorens , J. A. Martínez-Mora

An attractive technique to explore for super-high-energy cosmic neutrino fluxes, via deep underwater acoustic detection, is discussed. Acoustic signals emitted by the neutrino induced cascades at large distances (10-50 km) from cascades are…

Continuous-wave Nuclear Magnetic Resonance (CW-NMR) operated in constant-current mode has served as a foundational technique for polarization measurement in solid-state dynamically polarized targets within nuclear and high-energy physics…

Instrumentation and Detectors · Physics 2026-05-12 Devin Seay , Ishara P. Fernando , Dustin Keller

The existence of cosmic accelerators able to emit charged particles up to EeV energies has been confirmed by the observations made in the last years by experiments such as Auger and Telescope Array. The interaction of such energetic…

Instrumentation and Methods for Astrophysics · Physics 2022-08-03 Antonio Marinelli , Pasquale Migliozzi , Andreino Simonelli

To better understand the effect of ice properties on the capabilities of radio experiments designed to measure ultra-high energy neutrinos (UHEN), we recently considered the timing and amplitude characteristics of radio-frequency (RF)…

Instrumentation and Methods for Astrophysics · Physics 2022-08-16 DaveZ Besson , Ilya Kravchenko , Krishna Nivedita