Download or read book Emission of Radio Waves in Particle Showers written by Anne Zilles and published by Springer. This book was released on 2017-08-08 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Near field Effects in Radio Frequency Emission from Particle Showers in a Dense Medium written by Rachel J. Hyneman and published by . This book was released on 2015 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Characterizing Radio Emission from Extensive Air Showers with the SLAC T510 Experiment with Applications to ANITA written by Katharine B. Mulrey and published by . This book was released on 2018 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Radio Detection of High Energy Particles written by David Saltzberg and published by American Institute of Physics. This book was released on 2001-08-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Commission des logements insalubres Rapport written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particles Associated with Radio Emission from Extensive Air Showers at Large Zenith Angles written by Brian Lawless and published by . This book was released on 1969 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Instruments and Methods for the Radio Detection of High Energy Cosmic Rays written by Frank Schröder and published by Springer Science & Business Media. This book was released on 2012-12-14 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic rays consist of elementary particles with enormous energy which originate from outside our solar system and constantly hit the Earth’s atmosphere. Where do these cosmic rays originate? How does nature accelerate the cosmic-ray particles to energies with orders of magnitude beyond the limits of manmade particle accelerators? What can we learn by measuring the interactions of the cosmic rays with the atmosphere? Digital radio-antenna arrays offer a promising, complementary measurement method for high-energy cosmic rays. This thesis reports on substantial advances in the development of the radio technique, which will be used to address these questions in future experiments.
Download or read book Handbook of Particle Detection and Imaging written by Claus Grupen and published by Springer Science & Business Media. This book was released on 2012-01-08 with total page 1251 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook centers on detection techniques in the field of particle physics, medical imaging and related subjects. It is structured into three parts. The first one is dealing with basic ideas of particle detectors, followed by applications of these devices in high energy physics and other fields. In the last part the large field of medical imaging using similar detection techniques is described. The different chapters of the book are written by world experts in their field. Clear instructions on the detection techniques and principles in terms of relevant operation parameters for scientists and graduate students are given.Detailed tables and diagrams will make this a very useful handbook for the application of these techniques in many different fields like physics, medicine, biology and other areas of natural science.
Download or read book Radiation and Particle Detectors written by Sergio Bertolucci and published by IOS Press. This book was released on 2010 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: High energy physics (HEP) has a crucial role in the context of fundamental physics. HEP experiments make use of a massive array of sophisticated detectors to analyze the particles produced in high-energy scattering events. This book contains the papers from the workshop 'Radiation and Particle Detectors', organized by the International School of Physics, and held in Varenna in July 2009. Its subject is the use of detectors for research in fundamental physics, astro-particle physics and applied physics. Subjects covered include the measurement of: the position and length of ionization trails, t.
Download or read book Large Area Networked Detectors For Particle Astrophysics written by Pierre Sokolsky and published by World Scientific. This book was released on 2022-09-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The universe is pervaded by particles with extreme energies, millions of times greater than we can produce on Earth. They have been a mystery for over a century. Now, current and future experiments in particle astrophysics are leading us to answers to the most fundamental questions about them. How does nature accelerate the highest energy particles in the universe? Do new interactions between them occur at such extreme energies? Are there unknown aspects of spacetime that can be uncovered by studying these particles?This book brings together three fields within 'extreme astronomy': ultra-high-energy cosmic ray physics, neutrino astronomy, and gamma-ray astronomy, and discusses how each can help answer these questions. Each field is presented with a theoretical introduction that clearly elucidates the key questions scientists face. This is followed by chapters that discuss the current set of experiments — how they work and their discoveries. Finally, new techniques and approaches are discussed to solve the mysteries uncovered by the current experiments.
Download or read book Cosmic Rays and Particle Physics written by Thomas K. Gaisser and published by Cambridge University Press. This book was released on 2016-06-02 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated for the second edition, this book introduces the growing and dynamic field of particle astrophysics. It provides an overview of high-energy nuclei, photons and neutrinos, including their origins, their propagation in the cosmos, their detection on Earth and their relation to each other. Coverage is expanded to include new content on high energy physics, the propagation of protons and nuclei in cosmic background radiation, neutrino astronomy, high-energy and ultra-high-energy cosmic rays, sources and acceleration mechanisms, and atmospheric muons and neutrinos. Readers are able to master the fundamentals of particle astrophysics within the context of the most recent developments in the field. This book will benefit graduate students and established researchers alike, equipping them with the knowledge and tools needed to design and interpret their own experiments and, ultimately, to address a number of questions concerning the nature and origins of cosmic particles that have arisen in recent research.
Download or read book Acoustic and Radio EeV Neutrino Detection Activities written by Sebastian Bser and published by World Scientific. This book was released on 2006 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ARENA Workshop in Zeuthen was the first to combine extensively the fields of acoustic and radio detection techniques for high-energetic particle cascades from cosmic neutrino interactions. The articles in this volume comprise the latest research work which was presented by over 50 speakers from 10 countries. The wide coverage includes: theoretical predictions on fluxes and the potentialities of new techniques, theoretical and experimental results on target material properties, the fundamentals of interactions and cascade simulation, and current experimental results and the most recent neutrino flux limits. The book also considers future plans and experiments for both radio and acoustic methods with the aim of giving the reader an up-to-date overview of this rapidly developing field.
Download or read book Acoustic And Radio Eev Neutrino Detection Activities Proceedings Of The International Workshop Arena 2005 written by Sebastian Boser and published by World Scientific. This book was released on 2006-04-19 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ARENA Workshop in Zeuthen was the first to combine extensively the fields of acoustic and radio detection techniques for high-energetic particle cascades from cosmic neutrino interactions. The articles in this volume comprise the latest research work which was presented by over 50 speakers from 10 countries. The wide coverage includes: theoretical predictions on fluxes and the potentialities of new techniques, theoretical and experimental results on target material properties, the fundamentals of interactions and cascade simulation, and current experimental results and the most recent neutrino flux limits. The book also considers future plans and experiments for both radio and acoustic methods with the aim of giving the reader an up-to-date overview of this rapidly developing field.
Download or read book Encyclopedia Of Cosmology The Set 2 Frontiers In Cosmology In 3 Volumes written by Claudia De Rham and published by World Scientific. This book was released on 2023-09-21 with total page 1438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second set of The Encyclopedia of Cosmology, in three volumes, continues this major, long-lasting, seminal reference at the graduate student level laid out by the most prominent researchers in the general field of cosmology. Together, these volumes will be a comprehensive review of the most important current topics in cosmology, discussing the important concepts and current status in each field, covering both theory and observation.These three volumes are edited by Dr Giovanni Fazio from the Center for Astrophysics | Harvard & Smithsonian, with each volume authored or edited by specialists in the area: Modified Gravity by Claudia de Rham and Andrew Tolley (Imperial College), Neutrino Physics and Astrophysics edited by Floyd Stecker (NASA/Goddard Space Flight Center), Black Holes edited by Zoltan Haiman (Columbia University). These volumes follow the earlier publication in 2020 of The Encyclopedia of Cosmology, which comprises the following four volumes: Galaxy Formation and Evolution by Rennan Barkana (Tel Aviv University), Numerical Simulations in Cosmology edited by Kentaro Nagamine (Osaka University / University of Nevada), Dark Energy by Shinji Tsujikawa (Tokyo University of Science), and Dark Matter by Jihn E Kim (Seoul National University). The Encyclopedia aims to provide an overview of the most important topics in cosmology and serve as an up-to-date reference in astrophysics.
Download or read book Accelerator Measurements of Magnetically induced Radio Emission from Particle Cascades with Applications to Cosmic ray Air Showers written by and published by . This book was released on 2016 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extensive Air Showers written by Peter K. F. Grieder and published by Springer Science & Business Media. This book was released on 2010-08-09 with total page 1149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive air showers are a very unique phenomenon. In the more than six decades since their discovery by Auger and collaborators we have learned a lot about these extremely energetic events and gained deep insight into high-energy phenomena, particle physics and astrophysics. In this Tutorial, Reference Manual and Data Book Peter K. F. Grieder provides the reader with a comprehensive view of the phenomenology and facts of the various types of interactions and cascades, theoretical background, experimental methods, data evaluation and interpretation and air shower simulation. He discusses astrophysical aspects of the primary radiation and addresses remaining puzzling questions that cannot yet be answered. They remain as a challenge for present and future research in the field. The book is split into two volumes. Volume I deals mainly with the basic theoretical framework of the processes that determine an air shower and ends with a summary of ways and means to extract information from air shower observations on the primary radiation. It also presents a compilation of data of our current knowledge of the high energy portion of the primary spectrum and composition. Volume II contains mainly compilations of data of experimental and theoretical nature as well as predictions from simulations of individual air shower constituents. Also included are chapters dedicated exclusively to special processes and detection methods. Extensive up-to-date reference lists appear at the end of each chapter. Researchers and students working in the field of cosmic ray detection and astroparticle physics will appreciate finding this book in their library.
