Author: S. SuckewerPublisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
Toroidal Plasma Rotation in the PLT Tokamak with Neutral Beam Injection
Author: S. SuckewerDriven Rotation, Self-Generated Flow, and Momentum Transport in Tokamak Plasmas
Author: John RicePublisher: Springer Nature
ISBN: 3030922669
Category : Science
Languages : en
Pages : 158
Book Description
This book provides a comprehensive look at the state of the art of externally driven and self-generated rotation as well as momentum transport in tokamak plasmas. In addition to recent developments, the book includes a review of rotation measurement techniques, measurements of directly and indirectly driven rotation, momentum sinks, self-generated flow, and momentum transport. These results are presented alongside summaries of prevailing theory and are compared to predictions, bringing together both experimental and theoretical perspectives for a broad look at the field. Both researchers and graduate students in the field of plasma physics will find this book to be a useful reference. Although there is an emphasis on tokamaks, a number of the concepts are also relevant to other configurations.
Rotation and Impurity Transport in a Tokamak Plasma with Directed Neutral Beam Injection
Author: W. M. Stacey (Jr)Fusion Energy Update
Author: Energy Research Abstracts
Author: Rotation and Impurity Transport in a Tokamak Plasma with Directed Neutral Beam Injection
Author: Weston M. StaceyPublisher:
ISBN:
Category : Fusion reactors
Languages : en
Pages : 25
Book Description
Scientific and Technical Aerospace Reports
Author: Fusion Technology
Author: ERDA Energy Research Abstracts
Author: Ion Transport Studies on the PLT Tokamak During Neutral Beam Injection
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Radial transport of ions during co- and counter-neutral beam heating in the PLT tokamak has been studied, using molybdenum and scandium ions as tracer elements. The time evolution of the radial profiles of several ionization stages of both elements, injected by laser blowoff during the neutral beam heating, were measured under three significantly different beam-plasma combinations. No noticeable differences in the radial profiles attributable to the beam direction were observed. However, a given injected amount resulted in considerably larger interior concentrations of the tracer element in the counter-beam heating cases, suggesting larger penetration of the plasma periphery. Computer simulation with the MIST code suggests a net inward drift of the order 103 cm/sec superposed to a diffusion coefficient of the order 104 cm2/sec for both scandium and molybdenum ions. Injection of larger amounts of the tracer element, sufficient to cause measurable central electron temperature changes, resulted in dramatic changes in ion-state distributions, making some appear peaked in the center while others disappeared. This effect could be produced with both co- and counter-beam heating, but with lesser amounts in the latter case. It is interpreted as rearrangement of the ionization balance, rather than any preferential accumulation of the injected element.