Longitudinal Injection of Charged Particles into a Static Magnetic Configuration with Mirrors; INJECTION LONGITUDINALE DE PARTICULES CHARGEES DANS UNE CONFIGURATION MAGNETIQUE STATIQUE A MIROIRS

Technical Report · Wed Jan 01 04:00:00 EST 1964

OSTI ID:4002540

Girard, J P; Gourdon, C

The theoretical study of the capture of charged particles injected longitudinally into a modulated magnetic configuration of the type proposed by Sinelnikov is extended by the use of the idea of a limited surface. This makes it possible to define the injection conditions which seem to lead to longer confinement times. The injection proposed is effected near a trajectory which is asymptotic to equilibrium trajectory situated in the plane of a mirror. Under these conditions the limiting surface is almost completely closed to the mirrors. The initial magnetic moment is no longer zero, but already has the maximum value compatible with a penetration of the first mirror. A very small increase in the magnetic moment is then sufficient to ensure the capture of the particles; this is easily attained with a very low modulation factor. It is shown that capture can occur without modulation by a simple nonadiabatic effect due to the curvature of the field near the mirrors. The influence on the capture in these conditions of a weak parasitic component of the magnetic field which is perpendicular to the axis of revolution of the main configuration is studied. (auth)

• Research Organization: European Atomic Energy Community; and France. Commissariat a l'Energie Atomique. Centre d'Etudes Nucleaires, Fontenay-aux-Roses
• NSA Number: NSA-18-021370
• OSTI ID: 4002540
• Report Number(s): CEA-R-2410; EUR-544.f
• Country of Publication: France
• Language: English

Related Subjects

CHARGED PARTICLES
CONFIGURATION
CONFINEMENT
CONTAINMENT TIME
ENERGY
INJECTION
MAGNETIC FIELDS
MAGNETIC MIRRORS
MAGNETIC MOMENTS
MODULATION
PHYSICS
SURFACES
THERMONUCLEAR REACTIONS