Emission Of Radio Waves In Particle Showers

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Emission Of Radio Waves In Particle Showers

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Author : Anne Zilles
language : en
Publisher: Springer
Release Date : 2017-08-08

Emission Of Radio Waves In Particle Showers written by Anne Zilles and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-08 with Science categories.

This thesis offers the first laboratory validation of microscopic simulations of radio emission from particle showers, including a detailed description of the simulation study. It presents a potential future avenue for resolving the mass composition of cosmic rays via radio detection of air showers. Particle showers are created from cascading interactions when high-energy particles collide with matter, e.g. with air in the case of cosmic radiation, or with a particle detector in the case of experiments at CERN. These showers can consist of billions of particles, mostly electrons, positrons and photons. They emit radio waves when the absorbing medium is in a magnetic field, and this radio emission can be used as a novel means of detecting and drawing inferences on the shower and the primary particle. The new method is currently being established in cosmic ray research, where large antenna arrays may soon replace or complement traditional particle detectors. In thi s study, a complete microscopic simulation of a radio-emission experiment conducted at Stanford Linear Accelerator Center (SLAC), Stanford/USA, is performed, and the underlying physical models are validated. The model is subsequently applied to the Square Kilometre Array (SKA) project, which is a large interferometer for radio astronomy. It is demonstrated that the SKA, with some modifications, might also be used for cosmic ray research based on radio detection of high-energy particles from the cosmos.

Near Field Effects In Radio Frequency Emission From Particle Showers In A Dense Medium

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Author : Rachel J. Hyneman
language : en
Publisher:
Release Date : 2015

Near Field Effects In Radio Frequency Emission From Particle Showers In A Dense Medium written by Rachel J. Hyneman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Cosmic ray showers categories.

The SLAC T-510 Experiment studied the effects of a magnetic field upon the radio- frequency emission from particle showers in high-density polyethylene. Ultra-High Energy (UHF) and Very High Frequency (VHF) antennas were used to measure the radio frequency (RF) radiation from particle showers in the target. Special near field data runs were performed with the UHF antenna array positioned closer to the target (along the beam axis). The signal was split into two linearly polarized components, vertical and horizontal, arising from two different mechanisms: the Askaryan and Magnetic effects, respectively. Peak voltage data from the near-field runs was used to determine the behavior of the radiation amplitude as a function of distance from the target and angle made with respect to the beam line. Power spectral densities were produced using near field runs to analyze how various frequency ranges behaved as a function of distance. Initial results indicate that the amplitude dependence of the peak voltage on angle remains consistent even as the antennas are moved further from the target. A 1/R correction describes the effects of moving away from the target well. Spectral analysis reveals unclear effects in the lower frequency ranges. Although near field interference might be expected, such variations are likely dominated by reflections of RF emission within the target.

Characterizing Radio Emission From Extensive Air Showers With The Slac T510 Experiment With Applications To Anita

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Author : Katharine B. Mulrey
language : en
Publisher:
Release Date : 2018

Characterizing Radio Emission From Extensive Air Showers With The Slac T510 Experiment With Applications To Anita written by Katharine B. Mulrey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.

Neutrino and cosmic ray astronomy allow scientists to gather information about the highest energy processes in the universe. However, since cosmic rays are charged nuclei moving in astrophysical magnetic fields, it has not been possible to determine their sources by studying their arrival directions. A pointed neutrino flux is expected at such energies, either direct from the sources or due to the GZK process, where high energy cosmic rays interact with cosmic microwave photons as they travel through the universe. Detection methods make use of particle cascades initiated by these high energy primaries. In particular, the electromagnetic radiation in radio frequencies generated by particle cascades is a powerful tool. Particle cascades emit radiation by the Askaryan process, where a charge excess in the cascade emits coherently. In the presence of a magnetic field, a transverse current develops which also emits coherently in the radio regime. Theoretical models describe this radiation and are widely used to reconstruct the energy, geometry, and composition of observed events. Therefore, understanding and validating models describing this radiation is of great importance to neutrino and cosmic ray astronomy. ☐ The SLAC T-510 beam test is the first experiment to produce a particle cascade in a controlled setting in the presence of a magnetic field. Radio-frequency (RF) emission is collected in the region of the Cherenkov cone in two polarizations designed to separately capture Askaryan and magnetically induced radiation. Field intensity, linearity with magnetic field, and spectral content are compared to particle-level simulations. The data provide experimental evidence supporting theoretical models, and show the first laboratory results of the scaling of the radiative strength with the magnetic field. ☐ SLAC T-510 grew out of a need to calibrate the sensitivity of the ANITA (Antarctic Impulsive Transient Antenna) experiment to cosmic ray air showers. ANITA uses radio techniques to detect the highest energy neutrinos and cosmic rays. An array of broadband antennas flies over Antarctica looking for signals from neutrinos interacting in ice and cosmic rays interacting in the atmosphere. The ANITA 3 flight took place in the austral summer of 2014-2015. ☐ In this dissertation I describe the SLAC T-510 experiment and results, as well as preparation and flight from the 2014 ANITA 3 campaign.

Radio Detection Of High Energy Particles

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Author : David Saltzberg
language : en
Publisher: American Institute of Physics
Release Date : 2001-08-09

Radio Detection Of High Energy Particles written by David Saltzberg and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-08-09 with Medical categories.

Many physicists and astrophysicists are searching for information about the highest energy and therefore rarest cosmic rays. This has motivated efforts to instrument larger and larger volumes of material, leading to a resurgence of radio detection techniques. Particle-astrophysicists from around the world gathered to share recent results, simulations, hardware techniques, and historical reminiscences.

Acoustic And Radio Eev Neutrino Detection Activities

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Author : Rolf Nahnhauer
language : en
Publisher: World Scientific
Release Date : 2006

Acoustic And Radio Eev Neutrino Detection Activities written by Rolf Nahnhauer and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.

Introduction, history and theory. Early years of high energy neutrino physics in cosmic rays and neutrino astronomy (1957-1962) / I. Zheleznykh. Extremely energetic cosmic neutrinos: opportunities for astrophysics, particle physics, and cosmology / A. Ringwald. Comparison of GZK neutrino flux calculations* / D. Seckel et al. Investigation of event rates for different detector arrays and various extremely high energy models / J.K. Becker and W. Rhode (presented by J.K. Becker) -- Target material properties. Measurement of attenuation length for radio wave in natural rock salt samples concerning ultra high energy neutrino detection / M. Chiba et al. (presented by M. Chiba). Acoustic wave propagation in ice and salt* / B. Price. Experience on acoustic wave propagation in rock salt in the frequency range 1-100 kHz and conclusions with respect to the feasibility of a rock salt dome as neutrino detector / J. Eisenblätter et al. (presented by G. Manthei). Radio signals from photon beams in sand and salt / D. Williams et al. (presented by D. Williams). Broadband analysis of Askaryan pulses / P. Mioǐnović -- Simulation and propagation of signals. Hybrid scheme of simulation of electron-photon and electron-hadron cascades in dense medium at ultra-high energies / L.G. Dedenko et al. (presented by L.G. Dedenko). Structure function of excess charge in rock salt / Y. Watanabe et al. (presented by Y. Watanabe). Simulations of radio emission from electromagnetic showers in dense media / J. Alvarez-Muñiz et al. (presented by J. Alvarez-Muñiz). Monte Carlo simulations of radio emission from cosmic ray air showers / T. Huege and H. Falcke (presented by T. Huege). Simulation of radio signals from 1-10 TeV air showers using EGSnrc / R. Engel et al. (presented by A.A. Konstantinov) -- Signal processing and background reduction. Scaling of Askaryan pulses / D. Seckel. Signal processing for acoustic neutrino detection in water, ice and salt / S. Danaher. Experience from SAUND* / J. Vandenbroucke. An analysis approach to acoustic detection of extensive atmospheric showers / D. Zaborov -- Sensors and transmitters. Development of acoustic sensors for the ANTARES experiment / C. Naumann et al. (presented by C. Naumann). Measurements and simulation studies of Piezoceramics for acoustic particle detection / K. Salomon et al. Fiber laser hydrophones as pressure sensors / P.E. Bagnoli et al. (presented by C. Trono). Development of glaciophones and acoustic transmitters for ice / S. Böser et al. (presented by S. Böser). Preliminary results on hydrophones calibration with proton beam / A. Capone and G. de Bonis (presented by G. de Bonis) -- Experimental results I (acoustic). High frequency noise in Lake Baikal as a background for the acoustic detection of high energy neutrinos / V.M. Aynutdinov et al. (presented by N.M. Budnev). ITEP investigation of acoustic phenomena from high energy particles / V.S. Demidov et al. (presented by V. Lyashuk). Testing thermo-acoustic sound generation in water with proton and laser beams / K. Graf et al. (presented by K. Graf). Results from the SAUND I experiment* / J. Vandenbroucke. The NEMO acoustic test facility / G. Riccobene. First activities in acoustic detection of particles in UPV / M. Ardid et al. (presented by M. Ardid) -- Experimental results II (Cherenkov Radio). The upper limit to the EHE neutrino flux from observations of the moon with Kalyazin radio telescope / R.D. Dagkesamanskii et al. (presented by R.D. Dagkesamanskii). Using the Westerbork Radio Observatory to detect UHE cosmic particles interacting on the moon / J. Bacelar et al. (presented by J. Bacelar). Updated limits on the Ultra-High Energy (UHE) neutrino flux from the RICE experiment / Kravchenko et al. (presented by D. Besson). The ANITA cosmogenic neutrino experiment / P.W. Gorham et al. (presented by P. Miocinovic). Measuring the neutrino-nucleon cross section with SalSA / A. Connolly -- Experimental results III (Air Shower Radio). Radio detection of cosmic rays with LOPES / A. Horneffer et al. (presented by H. Falcke and A. Horneffer). Combined LOPES and KASCADE-GRANDE data analysis / A. Haungs et al. (presented by A. Haungs). Absolute calibration of the LOPES antenna system / S. Nehls et al. (presented by S. Nehls). CODALEMA: a cosmic ray air shower radio detection experiment / D. Ardouin et al. (presented by R. Dallier) -- Future projects I. The converted hydroacoustic array "MG-10M"--A basic module for a deep water neutrino-telescope / Y. Karlik and V. Svet (presented by V. Svet). A device for detection of acoustic signals from super high energy neutrinos / V.M. Aynutdinov et al. (presented by L.V. Pan'kov). The UK-ACoRNE group: present projects and future plans* / S. Danaher. ACoRNE simulation work / J. Perkin. Design considerations and sensitivity estimates for an acoustic neutrino detector / T. Karg et al. (presented by T. Karg) -- Future projects II. Study of acoustic ultra-high energy neutrino detection Phase II / N. Kurahashi. SPATS-a South Pole acoustic test setup / S. Böser et al. (presented by S. Böser). Integration of acoustic detection equipment into ANTARES / R. Lahmann et al. (presented by R. Lahmann). Overview of the LORD experiment (Lunar Orbital Radio Detector) / V.A. Chechin et al. (presented by V.A. Tsarev). Concept of the LORD experiment / V.A. Chechin et al. (presented by V.A. Chechin). Advanced detection methods of radio signals from cosmic rays for KASCADE Grande and Auder / H. Gemmeke et al. (presented by H. Gemmeke) -- Future projects III. Neutrino detection in salt domes under LOFAR / A.M. van den Berg. Introduction to the SalSA, a saltdome shower array as a GZK neutrino observatory (abstract only) / D. Saltzberg. Neutrino flavor identification in SalSA / P. Miočpinović. Simulation of a hybrid optical/radio/acoustic extension to icecube for EHE neutrino detection / J.A. Vandenbroucke et al. (presented by J.A. Vandenbroucke) -- Round table discussion. ARENA round table discussion summary / R. Nahnhauer -- Conference summary. ARENA 2005 Conference summary / J.G. Learned. ARENA workshop pictures. List of participants. *Contribution not received

Simulation Of Radio Emission From Air Showers In Atmospheric Electric Fields

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Author :
language : en
Publisher:
Release Date : 2010

Simulation Of Radio Emission From Air Showers In Atmospheric Electric Fields written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

We study the effect of atmospheric electric fields on the radio pulse emitted by cos- mic ray air showers. Under fair weather conditions the dominant part of the radio emission is driven by the geomagnetic field. When the shower charges are accelerated and deflected in an electric field additional radiation is emitted. We simulate this effect with the Monte Carlo code REAS2, using CORSIKA-simulated showers as input. In both codes a routine has been implemented that treats the effect of the electric field on the shower particles. We find that the radio pulse is significantly altered in background fields of the order of ~100 V/cm and higher. Practically, this means that air showers passing through thunderstorms emit radio pulses that are not a reliable measure for the shower energy. Under other weather circumstances significant electric field effects are expected to occur rarely, but nimbostratus clouds can harbor fields that are large enough. In general, the contribution of the electric field to the radio pulse has polarization properties that are different from the geomagnetic pulse. In order to filter out radio pulses that have been affected by electric field effects, radio air shower experiments should keep weatherinformation and perform full polarization measurements of the radio signal.

Particles Associated With Radio Emission From Extensive Air Showers At Large Zenith Angles

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Author : Brian Lawless
language : en
Publisher:
Release Date : 1969

Particles Associated With Radio Emission From Extensive Air Showers At Large Zenith Angles written by Brian Lawless and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.

Commission Des Logements Insalubres Rapport

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Author :
language : en
Publisher:
Release Date :

Commission Des Logements Insalubres Rapport written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.

Accelerator Measurements Of Magnetically Induced Radio Emission From Particle Cascades With Applications To Cosmic Ray Air Showers

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Author :
language : en
Publisher:
Release Date : 2016

Accelerator Measurements Of Magnetically Induced Radio Emission From Particle Cascades With Applications To Cosmic Ray Air Showers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

Tuning In On Cosmic Rays

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Author : Harm Schoorlemmer
language : en
Publisher:
Release Date : 2012

Tuning In On Cosmic Rays written by Harm Schoorlemmer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Cosmic rays categories.