Electromagnetic Launcher with Massive Light-Plasma Initiator

The results of experiments with an initiator of lithium and graphite, whose mass was 10% of the mass of the projectile, are presented. Similar initiators produce plasma with a high speed of sound and provide the initial speed of the projectile of ∼0.5 km/s. The droplet-shaped damage on the insulatin...

Full description

Saved in:
Bibliographic Details
Published inTechnical physics Vol. 64; no. 9; pp. 1298 - 1307
Main Authors Kozlov, A. V., Kotov, A. V., Polishchuk, V. P., Shurupov, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2019
Springer Nature B.V
Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
ACCELERATORS
Classical and Continuum Physics
Damage
Deceleration
DEFORMATION
DROPLETS
ELECTRICAL INSULATORS
GRAPHITE
Hypotheses
HYPOTHESIS
Initiators
LITHIUM
MASS
Physics
Physics and Astronomy
PLASMA
PRESSURE RANGE MEGA PA 10-100
PROJECTILES
SOUND WAVES
VISIBLE RADIATION
WALLS
railgun
resonant deformation
speed of sound
Online AccessGet full text

Cover

More Information
Summary:The results of experiments with an initiator of lithium and graphite, whose mass was 10% of the mass of the projectile, are presented. Similar initiators produce plasma with a high speed of sound and provide the initial speed of the projectile of ∼0.5 km/s. The droplet-shaped damage on the insulating wall of the accelerator channel are described. The link between the appearance of these damages and the sharp deceleration of the plasma piston (PP) is noted. A hypothesis relating the occurrence of damages to the resonant deformation of the channel under the action of a moving high-pressure front is discussed. It is shown that the hypothesis about the resonant deformation of the channel qualitatively explains the known features of the accelerator operation.
ISSN:1063-7842
1090-6525
DOI:10.1134/S106378421909007X