Author: Andrés de Bustos Molina
Publisher: Springer Science & Business Media
ISBN: 3319004220
Category : Science
Languages : en
Pages : 135

Get Book Here

Book Description
This thesis deals with the problem of ion confinement in thermonuclear fusion devices. It is a topic of general interest, as it helps to understand via numerical simulations the ion confinement properties in complex geometries, in order to predict their behavior and maximize the performance of future fusion reactors. The main work carried out in this thesis is the improvement and exploitation of an existing simulation code called ISDEP. This code solves the so-called ion collisional transport in arbitrary plasma geometry, improving in this sense other existing codes. Additionally, it presents outstanding portability and scalability in distributed computing architectures, such as Grid or Volunteer Computing. The main physical results can be divided into two blocks. First, the study of 3D ion transport in ITER is presented. ITER is the largest fusion reactor (under construction) and most of the simulations so far assume the axis-symmetry of the device. Unfortunately, this symmetry is only an approximation because of the discrete number of magnetic coils used. ISDEP has shown, using a simple model of the 3D magnetic field, how the ion confinement is affected by this symmetry breaking. Secondly, ISDEP has been applied successfully to the study of fast ion dynamics in fusion plasmas. The fast ions, with energies much larger than the thermal energy, are a product of the device’s heating system. Thus, a numerical predictive tool can be used to improve the heating efficiency. ISDEP has been combined with the FAFNER2 code to study such ions in stellarator (TJ-II, LHD) and tokamak (ITER) geometries. It has also been validated by experimental results. In particular, comparisons with the CNPA diagnostic in the TJ-II stellarator are remarkable.

Author: P.C Stangeby
Publisher: CRC Press
ISBN: 9780750305594
Category : Science
Languages : en
Pages : 738

Get Book Here

Book Description
The Plasma Boundary of Magnetic Fusion Devices introduces the physics of the plasma boundary region, including plasma-surface interactions, with an emphasis on those occurring in magnetically confined fusion plasmas. The book covers plasma-surface interaction, Debye sheaths, sputtering, scrape-off layers, plasma impurities, recycling and control, 1D and 2D fluid and kinetic modeling of particle transport, plasma properties at the edge, diverter and limiter physics, and control of the plasma boundary. Divided into three parts, the book begins with Part 1, an introduction to the plasma boundary. The derivations are heuristic and worked problems help crystallize physical intuition, which is emphasized throughout. Part 2 provides an introduction to methods of modeling the plasma edge region and for interpreting computer code results. Part 3 presents a collection of essays on currently active research hot topics. With an extensive bibliography and index, this book is an invaluable first port-of-call for researchers interested in plasma-surface interactions.

Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 104

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 438

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Nuclear fusion
Languages : en
Pages : 1144

Get Book Here

Book Description

Author: Olivier Sauter
Publisher: American Institute of Physics
ISBN: 9780735406001
Category : Science
Languages : en
Pages : 400

Get Book Here

Book Description
The Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas takes place every other year in a place particularly favorable for informal and in depth discussions. Invited and contributed papers present state-of-the art researches in theoretical plasma physics, covering all domains relevant to fusion plasmas. This workshop always allows a fruitful mix of experienced researchers and students, to allow for a better understanding of the key theoretical physics models and applications, such as: Theoretical issues related to burning plasmas; Anomalous Transport (Turbulence, Coherent Structures, Microinstabilities) RF Heating and Current Drive; Macroinstabilities; Plasma-Edge Physics and Divertors; Fast particles instabilities.

Author:
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 460

Get Book Here

Book Description

Author: Toshiaki Makabe
Publisher: CRC Press
ISBN: 1420012274
Category : Science
Languages : en
Pages : 355

Get Book Here

Book Description
Without plasma processing techniques, recent advances in microelectronics fabrication would not have been possible. But beyond simply enabling new capabilities, plasma-based techniques hold the potential to enhance and improve many processes and applications. They are viable over a wide range of size and time scales, and can be used for deposition,

Author: Wojciech Fundamenski
Publisher: Cambridge University Press
ISBN: 0521851718
Category : Science
Languages : en
Pages : 445

Get Book Here

Book Description
A complete and up-to-date summary of power exhaust in fusion plasmas, for academic researchers and graduate students in plasma physics.