Dynamics of Geomagnetically Trapped Radiation

Dynamics of Geomagnetically Trapped Radiation

Author: Juan G. Roederer

Publisher:

Published: 1970

Total Pages: 194

ISBN-13:

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"Since the discovery of geomagnetically trapped radiation by Van Allen in 1958, an impressive amount of experimental information on the earth's particle and field environment has nourished research work for scores of scientists and thesis work for their students. This quest has challenged space-age technology to produce better and more sophisticated instruments and has challenged the international scientific community and governments to establish more, and more effective, cooperative programs of research and information exchange. As a result, an orderly picture of the principal physical mechanisms governing the earth's radiation environment is beginning to emerge. The interest in this topic has reached far beyond the domain of geophysics. Indeed, we find trapped radiation elsewhere in the universe: Jupiter's radiation belts, particle trapping in sunspot magnetic fields, cosmic rays confined in interstellar fields and, possibly, ultra-high-energy particles trapped in the magnetic fields of rotating neutron stars. There is abundant technical and scientific literature available on Van Allen radiation; comprehensive reviews are published regularly in journals* or have been collected in book form**, and books have been written on the subject***. The aim of this monograph is to complement the existing literature with a concise discussion of the basic dynamical processes that control the earth's radiation belts. It is mainly intended to help a graduate student or a researcher new to this field to understand the underlying physics and to provide him with guidelines for quantitative, numerical applications of the theory." --Publisher's website.


Book Synopsis Dynamics of Geomagnetically Trapped Radiation by : Juan G. Roederer

Download or read book Dynamics of Geomagnetically Trapped Radiation written by Juan G. Roederer and published by . This book was released on 1970 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since the discovery of geomagnetically trapped radiation by Van Allen in 1958, an impressive amount of experimental information on the earth's particle and field environment has nourished research work for scores of scientists and thesis work for their students. This quest has challenged space-age technology to produce better and more sophisticated instruments and has challenged the international scientific community and governments to establish more, and more effective, cooperative programs of research and information exchange. As a result, an orderly picture of the principal physical mechanisms governing the earth's radiation environment is beginning to emerge. The interest in this topic has reached far beyond the domain of geophysics. Indeed, we find trapped radiation elsewhere in the universe: Jupiter's radiation belts, particle trapping in sunspot magnetic fields, cosmic rays confined in interstellar fields and, possibly, ultra-high-energy particles trapped in the magnetic fields of rotating neutron stars. There is abundant technical and scientific literature available on Van Allen radiation; comprehensive reviews are published regularly in journals* or have been collected in book form**, and books have been written on the subject***. The aim of this monograph is to complement the existing literature with a concise discussion of the basic dynamical processes that control the earth's radiation belts. It is mainly intended to help a graduate student or a researcher new to this field to understand the underlying physics and to provide him with guidelines for quantitative, numerical applications of the theory." --Publisher's website.

Dynamics of Geomagnetically Trapped Radiation

Dynamics of Geomagnetically Trapped Radiation

Author: J. G. Roederer

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 178

ISBN-13: 3642493009

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Since the discovery of geomagnetically trapped radiation by Van Allen in 1958, an impressive amount of experimental information on the earth's particle and field environment has nourished research work for scores of scientists and thesis work for their students. This quest has challenged space-age technology to produce better and more sophisticated instru ments and has challenged the international scientific community and governments to establish more, and more effective, cooperative programs of research and information exchange. As a result, an orderly picture of the principal physical mechanisms governing the earth's radiation environment is beginning to emerge. The interest in this topic has reached far beyond the domain of geo physics. Indeed, we find trapped radiation elsewhere in the universe: Jupiter's radiation belts, particle trapping in sunspot magnetic fields, cosmic rays confined in interstellar fields and, possibly, ultra-high-energy particles trapped in the magnetic fields of rotating neutron stars. There is abundant technical and scientific literature available on Van Allen radiation; comprehensive reviews are published regularly in journals* or have been collected in book form**, and books have been written on the subject***. The aim of this monograph is to complement the existing literature with a concise discussion of the basic dynamical processes that control the earth's radiation belts. It is mainly intended to help a graduate student or a researcher new to this field to understand the underlying physics and to provide him with guidelines for quantita tive, numerical applications of the theory.


Book Synopsis Dynamics of Geomagnetically Trapped Radiation by : J. G. Roederer

Download or read book Dynamics of Geomagnetically Trapped Radiation written by J. G. Roederer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of geomagnetically trapped radiation by Van Allen in 1958, an impressive amount of experimental information on the earth's particle and field environment has nourished research work for scores of scientists and thesis work for their students. This quest has challenged space-age technology to produce better and more sophisticated instru ments and has challenged the international scientific community and governments to establish more, and more effective, cooperative programs of research and information exchange. As a result, an orderly picture of the principal physical mechanisms governing the earth's radiation environment is beginning to emerge. The interest in this topic has reached far beyond the domain of geo physics. Indeed, we find trapped radiation elsewhere in the universe: Jupiter's radiation belts, particle trapping in sunspot magnetic fields, cosmic rays confined in interstellar fields and, possibly, ultra-high-energy particles trapped in the magnetic fields of rotating neutron stars. There is abundant technical and scientific literature available on Van Allen radiation; comprehensive reviews are published regularly in journals* or have been collected in book form**, and books have been written on the subject***. The aim of this monograph is to complement the existing literature with a concise discussion of the basic dynamical processes that control the earth's radiation belts. It is mainly intended to help a graduate student or a researcher new to this field to understand the underlying physics and to provide him with guidelines for quantita tive, numerical applications of the theory.

Dynamics, Composition and Origin of the Geomagnetically-trapped Corpuscular Radiation

Dynamics, Composition and Origin of the Geomagnetically-trapped Corpuscular Radiation

Author: James Alfred Van Allen

Publisher:

Published: 1961

Total Pages: 87

ISBN-13:

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Book Synopsis Dynamics, Composition and Origin of the Geomagnetically-trapped Corpuscular Radiation by : James Alfred Van Allen

Download or read book Dynamics, Composition and Origin of the Geomagnetically-trapped Corpuscular Radiation written by James Alfred Van Allen and published by . This book was released on 1961 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamics of Magnetically Trapped Particles

Dynamics of Magnetically Trapped Particles

Author: Juan G. Roederer

Publisher: Springer Science & Business Media

Published: 2013-12-13

Total Pages: 209

ISBN-13: 364241530X

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This book is a new edition of Roederer’s classic Dynamics of Geomagnetically Trapped Radiation, updated and considerably expanded. The main objective is to describe the dynamic properties of magnetically trapped particles in planetary radiation belts and plasmas and explain the physical processes involved from the theoretical point of view. The approach is to examine in detail the orbital and adiabatic motion of individual particles in typical configurations of magnetic and electric fields in the magnetosphere and, from there, derive basic features of the particles’ collective “macroscopic” behavior in general planetary environments. Emphasis is not on the “what” but on the “why” of particle phenomena in near-earth space, providing a solid and clear understanding of the principal basic physical mechanisms and dynamic processes involved. The book will also serve as an introduction to general space plasma physics, with abundant basic examples to illustrate and explain the physical origin of different types of plasma current systems and their self-organizing character via the magnetic field. The ultimate aim is to help both graduate students and interested scientists to successfully face the theoretical and experimental challenges lying ahead in space physics in view of recent and upcoming satellite missions and an expected wealth of data on radiation belts and plasmas.


Book Synopsis Dynamics of Magnetically Trapped Particles by : Juan G. Roederer

Download or read book Dynamics of Magnetically Trapped Particles written by Juan G. Roederer and published by Springer Science & Business Media. This book was released on 2013-12-13 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a new edition of Roederer’s classic Dynamics of Geomagnetically Trapped Radiation, updated and considerably expanded. The main objective is to describe the dynamic properties of magnetically trapped particles in planetary radiation belts and plasmas and explain the physical processes involved from the theoretical point of view. The approach is to examine in detail the orbital and adiabatic motion of individual particles in typical configurations of magnetic and electric fields in the magnetosphere and, from there, derive basic features of the particles’ collective “macroscopic” behavior in general planetary environments. Emphasis is not on the “what” but on the “why” of particle phenomena in near-earth space, providing a solid and clear understanding of the principal basic physical mechanisms and dynamic processes involved. The book will also serve as an introduction to general space plasma physics, with abundant basic examples to illustrate and explain the physical origin of different types of plasma current systems and their self-organizing character via the magnetic field. The ultimate aim is to help both graduate students and interested scientists to successfully face the theoretical and experimental challenges lying ahead in space physics in view of recent and upcoming satellite missions and an expected wealth of data on radiation belts and plasmas.

Introduction to Geomagnetically Trapped Radiation

Introduction to Geomagnetically Trapped Radiation

Author: Martin Walt

Publisher: Cambridge University Press

Published: 2005-12-15

Total Pages: 192

ISBN-13: 9780521616119

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This book is an introductory textbook on the physical processes occurring in the Earth's radiation belts. The presentation is at the advanced undergraduate or first year graduate level, and it is appropriate for students who intend to work in some aspect of magnetospheric physics. The treatment is quantitative and provides the mathematical basis for original work in this subject. The equations describing the motion of energetic ions and electrons in the geomagnetic field are derived from basic principles, and concepts such as magnetic field representations, guiding centre motion, adiabatic invariance, and particle distribution functions are presented in a detailed and accessible manner. Relevant experimental techniques are reviewed and a summary is given of the intensity and energy spectra of the particle populations in the Earth's radiation belts. Problem sets are included as well as appendices of tables, graphs and frequently used formulas.


Book Synopsis Introduction to Geomagnetically Trapped Radiation by : Martin Walt

Download or read book Introduction to Geomagnetically Trapped Radiation written by Martin Walt and published by Cambridge University Press. This book was released on 2005-12-15 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introductory textbook on the physical processes occurring in the Earth's radiation belts. The presentation is at the advanced undergraduate or first year graduate level, and it is appropriate for students who intend to work in some aspect of magnetospheric physics. The treatment is quantitative and provides the mathematical basis for original work in this subject. The equations describing the motion of energetic ions and electrons in the geomagnetic field are derived from basic principles, and concepts such as magnetic field representations, guiding centre motion, adiabatic invariance, and particle distribution functions are presented in a detailed and accessible manner. Relevant experimental techniques are reviewed and a summary is given of the intensity and energy spectra of the particle populations in the Earth's radiation belts. Problem sets are included as well as appendices of tables, graphs and frequently used formulas.

Geomagnetically Trapped Radiation

Geomagnetically Trapped Radiation

Author: S.F. Singer

Publisher:

Published: 1961

Total Pages: 274

ISBN-13:

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Book Synopsis Geomagnetically Trapped Radiation by : S.F. Singer

Download or read book Geomagnetically Trapped Radiation written by S.F. Singer and published by . This book was released on 1961 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Some General Aspects of Geomagnetically Trapped Radiation

Some General Aspects of Geomagnetically Trapped Radiation

Author: James Alfred Van Allen

Publisher:

Published: 1966

Total Pages: 58

ISBN-13:

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Book Synopsis Some General Aspects of Geomagnetically Trapped Radiation by : James Alfred Van Allen

Download or read book Some General Aspects of Geomagnetically Trapped Radiation written by James Alfred Van Allen and published by . This book was released on 1966 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Dynamic Loss of Earth's Radiation Belts

The Dynamic Loss of Earth's Radiation Belts

Author: Allison Jaynes

Publisher: Elsevier

Published: 2019-09-05

Total Pages: 344

ISBN-13: 0128133996

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The Dynamic Loss of Earth's Radiation Belts: From Loss in the Magnetosphere to Particle Precipitation in the Atmosphere presents a timely review of data from various explorative missions, including the Van Allen Probes, the Magnetospheric Multiscale Mission (which aims to determine magnetopause losses), the completion of four BARREL balloon campaigns, and several CubeSat missions focusing on precipitation losses. This is the first book in the area to include a focus on loss, and not just acceleration and radial transport. Bringing together two communities, the book includes contributions from experts with knowledge in both precipitation mechanisms and the effects on the atmosphere. There is a direct link between what gets lost in the magnetospheric radiation environment and the energy deposited in the layers of our atmosphere. Very recently, NASA’s Living With a Star program identified a new, targeted research topic that addresses this question, highlighting the timeliness of this precise science. The Dynamic Loss of Earth's Radiation Belts brings together scientists from the space and atmospheric science communities to examine both the causes and effects of particle loss in the magnetosphere. Examines both the causes and effects of particle loss in the magnetosphere from multiple perspectives Presents interdisciplinary content that bridges the gap, through communication and collaboration, between the magnetospheric and atmospheric communities Fills a gap in the literature by focusing on loss in the radiation belt, which is especially timely based on data from the Van Allen Probes, the Magnetospheric Multiscale Mission, and other projects Includes contributions from various experts in the field that is organized and collated by a clear-and-consistent editorial team


Book Synopsis The Dynamic Loss of Earth's Radiation Belts by : Allison Jaynes

Download or read book The Dynamic Loss of Earth's Radiation Belts written by Allison Jaynes and published by Elsevier. This book was released on 2019-09-05 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dynamic Loss of Earth's Radiation Belts: From Loss in the Magnetosphere to Particle Precipitation in the Atmosphere presents a timely review of data from various explorative missions, including the Van Allen Probes, the Magnetospheric Multiscale Mission (which aims to determine magnetopause losses), the completion of four BARREL balloon campaigns, and several CubeSat missions focusing on precipitation losses. This is the first book in the area to include a focus on loss, and not just acceleration and radial transport. Bringing together two communities, the book includes contributions from experts with knowledge in both precipitation mechanisms and the effects on the atmosphere. There is a direct link between what gets lost in the magnetospheric radiation environment and the energy deposited in the layers of our atmosphere. Very recently, NASA’s Living With a Star program identified a new, targeted research topic that addresses this question, highlighting the timeliness of this precise science. The Dynamic Loss of Earth's Radiation Belts brings together scientists from the space and atmospheric science communities to examine both the causes and effects of particle loss in the magnetosphere. Examines both the causes and effects of particle loss in the magnetosphere from multiple perspectives Presents interdisciplinary content that bridges the gap, through communication and collaboration, between the magnetospheric and atmospheric communities Fills a gap in the literature by focusing on loss in the radiation belt, which is especially timely based on data from the Van Allen Probes, the Magnetospheric Multiscale Mission, and other projects Includes contributions from various experts in the field that is organized and collated by a clear-and-consistent editorial team

Van Allen Radiation Belt Electron Dynamics During Geomagnetic Storms

Van Allen Radiation Belt Electron Dynamics During Geomagnetic Storms

Author: Leonid Olifer

Publisher:

Published: 2022

Total Pages: 0

ISBN-13:

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Space radiation is often identified as one of the most prominent dangers of space exploration. It mostly originates at the Sun and streams into the space between planets, creating hazardous radiation conditions at every point of the solar system which is not shielded by an atmosphere. Therefore, it is crucial to characterize this radiation and determine the worst-case radiation levels to aid in the design of radiation-tolerant spacecraft and satellites, mitigate damaging space radiation effects, and protect humans during the exploration of deep space. This thesis focuses on studying the dynamics of the electron radiation trapped in the magnetic field of the Earth, also known as Van Allen radiation belts, during geomagnetic storms that create the most hazardous radiation conditions around our planet. Often, the dynamics of the electron radiation belt are asserted to result from a delicate balance between acceleration and loss. In contrast, this thesis shows evidence for some remarkable repeatability in flux dynamics associated with both the loss and acceleration phases of geomagnetic storms. In relation to loss, this thesis presents a study of 69 geomagnetic storms that demonstrate intense and isolated compressions of the magnetopause, characterized by the location of the last closed drift shell (LCDS), to assess the repeatability of loss processes associated with magnetopause shadowing. A superposed epoch analysis of the particle dynamics associated with periods of low LCDS reveals a clear and repeatable organization of the loss as a function of both $L$* and energy for electrons with energies above 600~keV. The high repeatability reveals almost the same fraction of pre-existing particles is rapidly lost in every event. This can be explained by the fast outward radial diffusion of the electrons to the compressed LCDS. On the other hand, the lower energy electron population does not experience loss over the course of the storm but is instead accelerated to levels two to three orders of magnitude above the pre-storm level within a period of hours at the beginning of the storm. Significantly, the maximum flux reached in every event for this lower energy population (


Book Synopsis Van Allen Radiation Belt Electron Dynamics During Geomagnetic Storms by : Leonid Olifer

Download or read book Van Allen Radiation Belt Electron Dynamics During Geomagnetic Storms written by Leonid Olifer and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space radiation is often identified as one of the most prominent dangers of space exploration. It mostly originates at the Sun and streams into the space between planets, creating hazardous radiation conditions at every point of the solar system which is not shielded by an atmosphere. Therefore, it is crucial to characterize this radiation and determine the worst-case radiation levels to aid in the design of radiation-tolerant spacecraft and satellites, mitigate damaging space radiation effects, and protect humans during the exploration of deep space. This thesis focuses on studying the dynamics of the electron radiation trapped in the magnetic field of the Earth, also known as Van Allen radiation belts, during geomagnetic storms that create the most hazardous radiation conditions around our planet. Often, the dynamics of the electron radiation belt are asserted to result from a delicate balance between acceleration and loss. In contrast, this thesis shows evidence for some remarkable repeatability in flux dynamics associated with both the loss and acceleration phases of geomagnetic storms. In relation to loss, this thesis presents a study of 69 geomagnetic storms that demonstrate intense and isolated compressions of the magnetopause, characterized by the location of the last closed drift shell (LCDS), to assess the repeatability of loss processes associated with magnetopause shadowing. A superposed epoch analysis of the particle dynamics associated with periods of low LCDS reveals a clear and repeatable organization of the loss as a function of both $L$* and energy for electrons with energies above 600~keV. The high repeatability reveals almost the same fraction of pre-existing particles is rapidly lost in every event. This can be explained by the fast outward radial diffusion of the electrons to the compressed LCDS. On the other hand, the lower energy electron population does not experience loss over the course of the storm but is instead accelerated to levels two to three orders of magnitude above the pre-storm level within a period of hours at the beginning of the storm. Significantly, the maximum flux reached in every event for this lower energy population (

Introduction to Geomagnetically Trapped Radiation

Introduction to Geomagnetically Trapped Radiation

Author: Martin Walt

Publisher: Cambridge University Press

Published: 1994-11-03

Total Pages: 188

ISBN-13: 9780521431439

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This book is an introductory textbook on the physical processes occurring in the Earth's radiation belts. The presentation is at the advanced undergraduate or first year graduate level, and it is appropriate for students who intend to work in some aspect of magnetospheric physics. The treatment is quantitative and provides the mathematical basis for original work in this subject. The equations describing the motion of energetic ions and electrons in the geomagnetic field are derived from basic principles, and concepts such as magnetic field representations, guiding centre motion, adiabatic invariance, and particle distribution functions are presented in a detailed and accessible manner. Relevant experimental techniques are reviewed and a summary is given of the intensity and energy spectra of the particle populations in the Earth's radiation belts. Problem sets are included as well as appendices of tables, graphs and frequently used formulas.


Book Synopsis Introduction to Geomagnetically Trapped Radiation by : Martin Walt

Download or read book Introduction to Geomagnetically Trapped Radiation written by Martin Walt and published by Cambridge University Press. This book was released on 1994-11-03 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introductory textbook on the physical processes occurring in the Earth's radiation belts. The presentation is at the advanced undergraduate or first year graduate level, and it is appropriate for students who intend to work in some aspect of magnetospheric physics. The treatment is quantitative and provides the mathematical basis for original work in this subject. The equations describing the motion of energetic ions and electrons in the geomagnetic field are derived from basic principles, and concepts such as magnetic field representations, guiding centre motion, adiabatic invariance, and particle distribution functions are presented in a detailed and accessible manner. Relevant experimental techniques are reviewed and a summary is given of the intensity and energy spectra of the particle populations in the Earth's radiation belts. Problem sets are included as well as appendices of tables, graphs and frequently used formulas.