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Author: Ratko K. Janev
Publisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 106
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Book Description
Author: Ratko K. Janev
Publisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 106
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Book Description
Author: R.K. Janev
Publisher: Springer Science & Business Media
ISBN: 1475793197
Category : Science
Languages : en
Pages : 509
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Book Description
This well-illustrated resource provides vital cross-section information for the atomic and molecular collision processes taking place in the boundary region of magnetically confined fusion plasmas and in other laboratory and astrophysical low-temperature plasmas. The expertly assessed information in this noteworthy volume includes the most recent experimental and theoretical results presented in a convenient format. Coverage includes the processes of electron-impact excitation and ionization of plasma edge atoms, electron-ion recombination, dissociative collision processes involving electrons and much more.
Author: M. R. McDowell
Publisher: Springer Science & Business Media
ISBN: 1461591619
Category : Science
Languages : en
Pages : 497
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Book Description
The NATO Advanced Study Institute on "Atomic and Molecular Processes in Controlled TheI'IllOnuclear Fusion" was held at Chateau de Bonas, Castera-Verduzan, Gel's, France, from 13th to 24th August 1979, and this volume contains the text of the invited lectures. The Institute was supported by the Scientific Affairs Division of NATO, and additional support was received from EURATOM and the United States National Science Foundation. The Institute was attended by 88 scientists, all of whom were active research workers in control of thermonuclear plasmas, 01' atomic and molecular physics, 01' both. In addition to the formal lectures, printed in this volume, which were intended to be pedagogic, more than twenty research seminars were given by participants. The first half of the Institute was directed to introducing atomic and molecular theoretical and experimental physicists to the physics of controlled thermonuclear fusion. Most attention was paid to magnetic confinement, and within that field, to tokamaks. MI'.
Author: David R. Schultz
Publisher: American Institute of Physics
ISBN: 9780735400917
Category : Computers
Languages : en
Pages : 330
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Book Description
The International Conference on Atomic and Molecular Data and Their Applications is a forum for researchers who produce, collect, evaluate, disseminate, and apply atomic and molecular data, particularly in gaseous and plasma environments. These include applications in technical plasma processing, lighting, astrophysics, medical radiation physics, and inertial and magnetic confinement fusion, for example.
Author: Albert L. Osterheld
Publisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 328
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Book Description
Contains papers based on 30 talks presented at the Tenth American Physical Society Topical Conference on Atomic Processes in Plasmas, held in San Francisco in January 1996. The volume begins with a section on atomic physics in tokamak plasmas, followed by sections covering atomic physics in astrophy
Author: Shota Abe
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
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Book Description
The new molecular assisted recombination [MAR] of hydrogen plasmas supported by ammonia is investigated and presented throughout this work. The plasma detachment scheme has been considered to be a practical approach to drastically reduce the harsh heat flux to prevent severe damage onto the divertor plates. In the detached divertor plasma operation, the plasma from the fusion core loses its energy by the radiation loss in the upstream divertor region, and is recombined before it touches the divertor plate in the downstream region, with help of impurity gas seeding. Nitrogen is the strong candidate of cooling gas species, and forms compounds with hydrogen i.e. ammonia. This hydronitrogen-enhanced MAR [HN-MAR] process would occur throughout two steps: 1) charge or ion exchange reactions between hydrogen ions and ammonia molecules, 2) recombination reactions between NH3+ or NH4+ ions and electrons. In this work, the HN-MAR process including those 2 steps is studied combining experiments and rate equation model. The PISCES-E plasma device is used to make plasmas (ne ~ 10^16-10^18 m-3, Te ~ 3-4 eV) with D2, N2, ND3, and Ar gas feeding. As the 1st step of HN-MAR, the formation processes of ND3+ and ND4+ are investigated in low density D-N plasmas (ne ~ 10^16 m-3). The model shows that dominant neutralization channel of D+, D2+, and D3+ in the volume is the creation process of ND3+ and ND4+ throughout the charge or ion exchange reactions with ND3. The 2nd step of HN-MAR is studied using high density D-N-Ar plasmas (ne 10^17=10^18 m-3), in which the recombination process of ND3+ and ND4+ cannot be negligible comparing to the wall loss. The result shows that, as the plasma density is increased to these larger values, the ND4+ density fraction undergoes a drastic decrease in good agreement with a 0-d chemical kinetics model. These results provide evidence for the dissociative recombination reactions in the HN-MAR process. Finally, it is strongly suggested that the HN-MAR process is major chemical reactions in our D-N plasmas.
Author: Ratko K. Janev
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 502
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Book Description
Atomic and plasma-material interaction processes play an important role in thermonuclear fusion plasmas and the knowledge of these processes has a significant impact on fusion energy research and development. The present volume provides a comprehensive survey of atomic and plasma-material interaction aspects of controlled thermonuclear fusion. The review articles included in this volume describe the role of atomic and plasma-material interaction processes in the currently most active fusion research areas and emphasize the need for accurate quantitative information on these processes for resolving many outstanding issues in fusion research and reactor design development such as plasma energy balance, particle transport and confinement, impurity control, thermal power and helium exhaust, plasma heating and fuelling, edge plasma physics, development of fusion reactor plasma facing components and plasma diagnostics and modelling.
Author: Mats Larsson
Publisher: World Scientific
ISBN: 9814543357
Category : Science
Languages : en
Pages : 314
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Book Description
Dissociative recombination is a complex molecular process that occurs in any plasma cold enough to contain molecular constituents. It is the dominant recombination process in planetary ionospheres and interstellar clouds. In this book, recent developments in the fields of molecular ion physics, atomic and molecular theory, astrochemistry, aeronomy and plasma physics are discussed.
Author: Nihon Gakujutsu ShinkÅkai
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 758
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Book Description
