Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quasilinear relaxation of a beam of fast ions in the tokamak

Journal Article · · Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:7117747
Quasilinear relaxation of a beam of fast ions produced in a tokamak upon injection of a beam of fast neutral atoms is investigated theoretically. Relaxation of this type is assumed to be due to interaction between the ions and Alfven waves. A beam moving along the magnetic field is considered. The shear of the magnetic force lines is neglected. It is shown that under these assumptions the quasilinear relaxation is much more rapid than the Coulomb relaxation due to pair collisions. It is concluded that the concept of a ''two-component tokamak,'' which is based on the assumption of Coulomb relaxation of the fast ions, calls in general for revision.
Research Organization:
I. V. Kurchatov Institute of Atomic Energy
OSTI ID:
7117747
Journal Information:
Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 43:6; ISSN SPHJA
Country of Publication:
United States
Language:
English

Similar Records

Relaxation of a fast ion beam in a tokamak plasma
Journal Article · Sat Jul 01 00:00:00 EDT 1978 · Sov. J. Plasma Phys. (Engl. Transl.); (United States) · OSTI ID:6197582

Collective processes in the injection of fast neutrals into a tokamak with a noncircular cross section
Journal Article · Mon Feb 28 23:00:00 EST 1977 · Sov. J. Plasma Phys. (Engl. Transl.); (United States) · OSTI ID:7090071

Enhancement of the quasilinear relaxation of a fast ion beam in a noncircular tokamak
Journal Article · Tue Jul 01 00:00:00 EDT 1980 · Sov. J. Plasma Phys. (Engl. Transl.); (United States) · OSTI ID:6423438