Thomas Meures
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View article: Results from a low-threshold ultrahigh-energy neutrino search with the Askaryan Radio Array
Results from a low-threshold ultrahigh-energy neutrino search with the Askaryan Radio Array Open
The Askaryan Radio Array (ARA) is an in-ice radio detector at the South Pole that targets radio emission from neutrino-induced particle cascades. Designed to detect neutrinos above 10 PeV, ARA has been taking data for over ten years and in…
View article: A macroscopic model of radar detection for the Radar Echo Telescope
A macroscopic model of radar detection for the Radar Echo Telescope Open
We introduce a new macroscopic model to simulate in-ice radar detection of high-energy particle\ncascades in dense media. High energy cosmic ray showers impacting a high altitude ice sheet, or\ncosmic neutrinos interacting in the ice produ…
View article: From signal properties toward reconstruction for the Radar Echo Telescope for neutrinos
From signal properties toward reconstruction for the Radar Echo Telescope for neutrinos Open
High energy cosmic neutrinos interacting in ice will induce a particle cascade. The Radar Echo Telescope (RET) aims to detect the neutrino through probing the cascade by means of the radar echo method. In order to study this process, we si…
View article: The Radar Echo Telescope: Detection of Ultra High Energy Neutrinos and Cosmic Rays Using the Radar Echo Technique
The Radar Echo Telescope: Detection of Ultra High Energy Neutrinos and Cosmic Rays Using the Radar Echo Technique Open
The SLAC T-576 beam test has shown the radar echo detection method as a feasible technique to probe high-energy-particle-initiated cascades in dense media, such as ice. Furthermore, particle-level simulations show that the radar echo metho…
View article: Design and performance of the prototype Schwarzschild-Couder telescope camera
Design and performance of the prototype Schwarzschild-Couder telescope camera Open
The prototype Schwarzschild-Couder Telescope (pSCT) is a candidate for a medium-sized telescope in the Cherenkov Telescope Array. The pSCT is based on a novel dual mirror optics design which reduces the plate scale and allows for the use o…
View article: The Radio Neutrino Observatory Greenland (RNO-G)
The Radio Neutrino Observatory Greenland (RNO-G) Open
The Radio Neutrino Observatory Greenland (RNO-G) is scheduled for deployment in the summerof 2021. It will target the detection of astrophysical and cosmogenic neutrinos above 10 PeV. With 35 autonomous stations, it will be the largest imp…
View article: Direction Reconstruction for the Radio Neutrino Observatory Greenland (RNO-G)
Direction Reconstruction for the Radio Neutrino Observatory Greenland (RNO-G) Open
The Radio Neutrino Observatory Greenland (RNO-G) is planned to be the first large-scale implementation of the in-ice radio detection technique. It targets astrophysical as well as cosmogenic neutrinos with energies above 10 PeV. The deep c…
View article: Hardware Development for the Radio Neutrino Observatory in Greenland (RNO-G)
Hardware Development for the Radio Neutrino Observatory in Greenland (RNO-G) Open
The Radio Neutrino Observatory in Greenland (RNO-G) is designed to make the first observations of ultra-high energy neutrinos at energies above 10 PeV, playing a unique role in multi-messenger astrophysics as the world's largest in-ice Ask…
View article: Energy reconstruction with the Radio Neutrino Observatory Greenland (RNO-G)
Energy reconstruction with the Radio Neutrino Observatory Greenland (RNO-G) Open
Starting in summer 2021, the Radio Neutrino Observatory Greenland (RNO-G) will attempt to\nachieve the first detection of neutrinos with energies at the EeV scale. We present a method to\nreconstruct the energy of neutrino-induced particle…
View article: The Radar Echo Telescope for Neutrinos (RET-N)
The Radar Echo Telescope for Neutrinos (RET-N) Open
We present the Radar Echo Telescope for Neutrinos (RET-N). RET-N focuses on the detection of the cosmic neutrino flux above PeV energies by means of the radar detection technique. This method aims to bridge the energy gap between the diffu…
View article: Toward High Energy Neutrino Detection with the Radar Echo Telescope for Cosmic Rays (RET-CR)
Toward High Energy Neutrino Detection with the Radar Echo Telescope for Cosmic Rays (RET-CR) Open
The Radar Echo Telescope for Cosmic Rays (RET-CR) is a pathfinder experiment for the Radar Echo Telescope for Neutrinos (RET-N), a next-generation in-ice detection experiment for ultra high energy neutrinos. RET-CR will serve as the testbe…
View article: Investigating signal properties of UHE particles using in-ice radar for the RET experiment
Investigating signal properties of UHE particles using in-ice radar for the RET experiment Open
The Radar Echo Telescope (RET) experiment plans to use the radar technique to detect Ultra-High Energy (UHE) cosmic rays and neutrinos in the polar ice sheets. Whenever an UHE particle collides with an ice molecule, it produces a shower of…
View article: Application of parabolic equation methods to in-ice radiowave propagation for ultra high energy neutrino detection experiments
Application of parabolic equation methods to in-ice radiowave propagation for ultra high energy neutrino detection experiments Open
Many ultra-high-energy neutrino-detection experiments seek radio wave signals from neutrino interactions deep within the polar ice, and an understanding of in-ice radio wave propagation is therefore of critical importance. The parabolic eq…
View article: Simulation and Optimisation for the Radar Echo Telescope for Cosmic Rays
Simulation and Optimisation for the Radar Echo Telescope for Cosmic Rays Open
The SLAC T-576 beam test experiment showed the feasibility of the radar detection technique to probe high-energy particle cascades in dense media. Corresponding particle-level simulations indicate that the radar method has very promising s…
View article: Verification of the optical system of the 9.7-m prototype Schwarzschild-Couder Telescope
Verification of the optical system of the 9.7-m prototype Schwarzschild-Couder Telescope Open
For the first time in the history of ground-based $\\gamma$-ray astronomy, the\non-axis performance of the dual mirror, aspheric, aplanatic\nSchwarzschild-Couder optical system has been demonstrated in a $9.7$-m aperture\nimaging atmospher…
View article: Coherent radar reflections from an electron-beam induced particle cascade
Coherent radar reflections from an electron-beam induced particle cascade Open
Experiment T-576 ran at SLAC in 2018, in development of a new radar-based detection scheme for ultra-high energy neutrinos. In this experiment, the electron beam (N∼109e−
\n at ∼10
\n GeV) was directed into a plastic target to simulate a 1…
View article: Upgrading the Prototype Schwarzschild-Couder Telescope Camera to a Wide-Field, High-Resolution Instrument
Upgrading the Prototype Schwarzschild-Couder Telescope Camera to a Wide-Field, High-Resolution Instrument Open
The Schwarzschild-Couder Telescope (SCT) is a candidate technology for a medium-sized telescope within the Cherenkov Telescope Array. It is expected to yield improvements in field of view and image resolution compared to traditional telesc…
View article: Observation of radio emissions from electron beams using an ice target
Observation of radio emissions from electron beams using an ice target Open
To observe high energy cosmogenic neutrinos above 50 PeV, the large neutrino telescope ARA is being built at the South Pole. The ARA telescope detects neutrinos by observing radio signals by the Askaryan effect. We performed an experiment …
View article: Study of Microwave Radiation from the Electron Beam at the Telescope Array Site
Study of Microwave Radiation from the Electron Beam at the Telescope Array Site Open
The Telescope Array (TA) experiment installed the electron accelerator in order to calibrate the fluorescence detector by shooting 40 MeV electrons into the atmosphere. This accelerator also works to investigate the radio detection techniq…
View article: Probing the radar scattering cross-section for high-energy particle cascades in ice
Probing the radar scattering cross-section for high-energy particle cascades in ice Open
Recently the radar scattering technique to probe neutrino induced particle cascades above PeV energies in ice was investigated. The feasibility of the radar detection method was shown to crucially depend on several up to now unknown plasma…
View article: Coherent radio emission from the electron beam sudden appearance
Coherent radio emission from the electron beam sudden appearance Open
We report on the measurement of coherent radio emission from the electron\nbeam sudden appearance at the Telescope Array Electron Light Source facility.\nThis emission was detected by four independent radio detector setups sensitive\nto fr…
View article: First results from two deep Askaryan Radio Array stations
First results from two deep Askaryan Radio Array stations Open
The Askaryan Radio Arrray (ARA) is a planned and in parts constructed detector for ultra-high energy neutrinos, utilizing radio emission from neutrino induced particle showers. With this detection method, ARA will be able to employ several…
View article: Interpretation of the cosmic-ray air shower signal in Askaryan radio detectors
Interpretation of the cosmic-ray air shower signal in Askaryan radio detectors Open
\nWe discuss the radio emission from a cosmic-ray air shower propagating in air before it hits an air-ice boundary after which it completes its propagation inside the ice. The in-air emission, the in-ice emission, as well as the transition…
View article: On the feasibility of the radar detection of high-energy cosmic neutrinos
On the feasibility of the radar detection of high-energy cosmic neutrinos Open
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 win…
View article: First cosmogenic neutrino limits from two full ARA detector stations at South Pole
First cosmogenic neutrino limits from two full ARA detector stations at South Pole Open
First constraints on
View article: On the feasibility of RADAR detection of high-energy cosmic neutrinos
On the feasibility of RADAR detection of high-energy cosmic neutrinos Open
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 win…
View article: Coherent Transition Radiation in Askaryan radio detectors
Coherent Transition Radiation in Askaryan radio detectors Open
We discuss the coherent transition radiation emitted by a macroscopic bunch of particles with a net charge traversing the boundary of two different media. The obtained expression is compared to the emission from a relativistically moving s…