ADVANCED DETECTION METHODS OF RADIO SIGNALS FROM COSMIC RAYS FOR KASCADE GRANDE AND AUGER

The LOPES experiment (LOfar Prototype Station) has been built at the KASCADE-Grande experiment in order to test the LOFAR (LOw Frequency ARray) technology and demonstrate its capability for radio measurements in Extensive Air Showers (EAS). After the first positive results in the framework of the KASCADE-Grande experiment we developed the next generation of antennas, electronics, and trigger. The main new features are easy calibration of antennas with precise detection of polarization, and good capability of self-triggering. The results from this new design are under test in Karlsruhe. Furthermore the background situation was measured and analyzed.

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The use of adaptive predictor filter as a trigger mechanism in simulated cosmic rays radio signals corrupted with Gaussian noise

10.22323/1.395.0258 ◽

2021 ◽

Author(s):

Clara Keiko Oliveira Watanabe ◽

Paulo Sergio Ramirez Diniz ◽

Tim Huege ◽

João de Mello Neto

Keyword(s):

Cosmic Rays ◽

Gaussian Noise ◽

Trigger Mechanism ◽

Radio Signals

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Analyzing solar, cosmic, and geophysical events in September 2017 using SHISRA SB RAS complex observations

Solar-Terrestrial Physics ◽

10.12737/stp-51201903 ◽

2019 ◽

Vol 5 (1) ◽

pp. 14-27

Author(s):

Сергей Стародубцев ◽

Sergei Starodubtsev ◽

Дмитрий Баишев ◽

Dmitry Baishev ◽

Владислав Григорьев ◽

...

Keyword(s):

Cosmic Rays ◽

Magnetic Storm ◽

Lead Time ◽

Complex Analysis ◽

Ground Level ◽

Signal Propagation ◽

Solar Cosmic Rays ◽

Forecast Lead Time ◽

Radio Signals ◽

Geomagnetic Fields

We report the results of monitoring of cosmic rays and geomagnetic field along 210 magnetic meridians in Yakutia in the first half of September 2017. The energy spectrum of solar cosmic rays during Ground Level Enhancement in September 10, 2017 is estimated as J=3027E–1.99exp(–E/729 MeV). We present the results of the forecast and complex analysis of the magnetic storm on September 7–9, 2017 with Dst=–124 nT. The forecast lead time is about one day. We examine how the storm affected the electric potential and VLF signal propagation from RSDN-20 radio navigation stations. Irregular Pi3–Pi1 pulsations occurred during the September 8, 2017 magnetic storm from 12 to 20 UT. The pulsations were accompanied by variations in electrotelluric potentials and geomagnetic fields with the correlation coefficient between them ρ(E, H)=0.5÷0.9. The effects of the magnetic storm manifested themselves as an increase in the attenuation and a decrease in the phase delay of VLF radio signals.

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ARIANNA: Measurement of cosmic rays with a radio neutrino detector in Antarctica

EPJ Web of Conferences ◽

10.1051/epjconf/201921602008 ◽

2019 ◽

Vol 216 ◽

pp. 02008 ◽

Cited By ~ 1

Author(s):

Christian Glaser

Keyword(s):

Cosmic Rays ◽

Cosmic Ray ◽

Cost Effective ◽

Neutrino Detector ◽

Air Showers ◽

Ice Shelf ◽

Ross Ice Shelf ◽

Radio Signals ◽

Single Detector ◽

The Antarctic

The ARIANNA detector aims to detect neutrinos with energies above 1016 eV by instrumenting 0.5 Teratons of ice with a surface array of a thousand independent radio detector stations in Antarctica. The Antarctic ice is transparent to the radio signals caused by the Askaryan effect which allows for a cost-effective instrumentation of large volumes. Several pilot stations are currently operating successfully at the Moore’s Bay site (Ross Ice Shelf) and at the South Pole. As the ARIANNA detector stations are positioned at the surface, the more abundant cosmic-ray air showers are also measured and serve as a direct way to prove the capabilities of the detector. We will present measured cosmic rays and will show how the incoming direction, polarization and electric field of the cosmicray pulse can be reconstructed from single detector stations comprising 4 upward and 4 downward facing LPDA antennas.

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INVESTIGATION OF EVENT RATES FOR DIFFERENT DETECTOR ARRAYS AND VARIOUS EXTREMELY HIGH ENERGY MODELS

International Journal of Modern Physics A ◽

10.1142/s0217751x06033295 ◽

2006 ◽

Vol 21 (supp01) ◽

pp. 20-24

Author(s):

J. K. BECKER ◽

W. RHODE

Keyword(s):

Neutrino Flux ◽

High Energy ◽

Detection Methods ◽

Detector Arrays ◽

Energy Models ◽

The Earth ◽

Radio Signals ◽

Depth Ranges ◽

Event Rates

New detection methods for extremely high energy (EHE) neutrinos are being discussed. In this paper, the comparison of different detection methods at energies E > 107.5 GeV are examined, using various neutrino flux predictions. Arrays for acoustic and radio signals from neutrino induced electromagnetic cascades as well as the IceCube array with additional strings ("IceCube Plus") are investigated with effective volumes as given in 5,6. The depth of the detector below the Earth's surface are examined with respect to the absorption of a potential neutrino signal by the Earth. It can be shown that absorption plays an important role and that an array of acoustic and radio antennas should preferably be put at shallow depths of ~ 500 m depth. The detection potential at this depth ranges from several up to tens of events at EHEs depending on the source of the neutrino flux.

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TAROGE experiment and reconstruction technique for near-horizon impulsive radio signals induced by Ultra-high energy cosmic rays

10.22323/1.395.0263 ◽

2021 ◽

Author(s):

Yaocheng Chen

Keyword(s):

Cosmic Rays ◽

High Energy ◽

Reconstruction Technique ◽

Ultra High Energy ◽

High Energy Cosmic Rays ◽

Radio Signals

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Towards real-time cosmic-ray identification with the LOw Frequency ARay

EPJ Web of Conferences ◽

10.1051/epjconf/201921604005 ◽

2019 ◽

Vol 216 ◽

pp. 04005 ◽

Cited By ~ 1

Author(s):

Antonio Bonardi ◽

Stijn Buitink ◽

Arthur Corstanje ◽

Heino Falcke ◽

Brian M. Hare ◽

...

Keyword(s):

Cosmic Rays ◽

Real Time ◽

Low Frequency ◽

Cosmic Ray ◽

Recognition System ◽

Extensive Air Showers ◽

Particle Detector ◽

Air Showers ◽

The Real ◽

Radio Signals

The radio signals emitted by Extensive Air Showers have been successfully used for the last decade by LOFAR to reconstruct the properties of the primary cosmic rays. Since an effective real-time recognition system for the very short radio pulses is lacking, cosmic-ray acquisition is currently triggered by an external array of particle detector, called LORA, limiting the LOFAR collecting area to the area covered by LORA. A new algorithm for the real-time cosmic-ray detection has been developed for the LOFAR Low Band Antenna, which are sensitive between 10 and 90 MHz, and is here presented together with the latest results.

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Analyzing solar, cosmic, and geophysical events in September 2017 using SHISRA SB RAS complex observations

Solnechno-Zemnaya Fizika ◽

10.12737/szf-51201903 ◽

2019 ◽

Vol 5 (1) ◽

pp. 17-38

Author(s):

Сергей Стародубцев ◽

Sergei Starodubtsev ◽

Дмитрий Баишев ◽

Dmitry Baishev ◽

Владислав Григорьев ◽

...

Keyword(s):

Cosmic Rays ◽

Magnetic Storm ◽

Lead Time ◽

Complex Analysis ◽

Ground Level ◽

Signal Propagation ◽

Solar Cosmic Rays ◽

Forecast Lead Time ◽

Radio Signals ◽

Geomagnetic Fields

We report the results of monitoring of cosmic rays and geomagnetic field along 210 magnetic meridians in Yakutia in the first half of September 2017. The energy spectrum of solar cosmic rays during Ground Level Enhancement in September 10, 2017 is estimated as J=3027E–1.99exp(–E/729 MeV). We present the results of the forecast and complex analysis of the magnetic storm on September 7–9, 2017 with Dst=–124 nT. The forecast lead time is about one day. We examine how the storm affected the electric potential and VLF signal propagation from RSDN-20 radio navigation stations. Irregular Pi3–Pi1 pulsations occurred during the September 8, 2017 magnetic storm from 12 to 20 UT. The pulsations were accompanied by variations in electrotelluric potentials and geomagnetic fields with the correlation coefficient between them ρ(E, H)=0.5÷0.9. The effects of the magnetic storm manifested themselves as an increase in the attenuation and a decrease in the phase delay of VLF radio signals.

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The particles concepts and physical detection schemes of dark matter

Journal of Physics Conference Series ◽

10.1088/1742-6596/2083/2/022049 ◽

2021 ◽

Vol 2083 (2) ◽

pp. 022049

Author(s):

Zhongyi Lin ◽

Ziheng Xiong ◽

Bowen Yang

Keyword(s):

Dark Matter ◽

Cosmic Rays ◽

Gravitational Waves ◽

Separation Of Variables ◽

Detection Methods ◽

New Methods ◽

Dark Matter Detection ◽

Detection Schemes ◽

Matter Detection ◽

Shed Light

Abstract It is still unable to determine the categories of particle that composes the dark matter due to the shortage of detection methods. In this paper, we used the methods of separation of variables, analogy, and dimensional analysis to investigate dark matter detection. The three different models, including the WIMP, axions, and MACHOs, are considered first, which described the properties of dark matter as well. Subsequently, the three currents methods of detecting dark matter, and shortage of those methods are discussed. According to the drawbacks, we have related Gravitational Waves and Cosmic Rays to detecting dark matter, which may contribute to the further detection of dark matter. The milestones achieved these years have also been briefly described, followed by some up-gradations of detectors and further research schemes. These new methods proposed in theory will be upgraded and implemented soon. These results shed light for future dark matter detection.

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Some results from the Yakutsk array experiment and the status of the modernization program

EPJ Web of Conferences ◽

10.1051/epjconf/201920808005 ◽

2019 ◽

Vol 208 ◽

pp. 08005

Author(s):

Anatoly Ivanov

Keyword(s):

Cosmic Rays ◽

Charged Particles ◽

Cherenkov Light ◽

Air Showers ◽

Yakutsk Array ◽

The Status ◽

Radio Signals

The Yakutsk array has been used to study cosmic rays since 1974. Charged particles such as electrons, positrons and muons are detected, as well as radio signals emitted by air showers. However, the characteristic shower component detected by the array is Cherenkov light. This article briefly reviews recent results from the Yakutsk array group.

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