3 research outputs found
Axial coil accelerator of plasma ring in the atmospheric pressure air
An axial coil accelerator for acceleration of plasma formation having intrinsic magnetic field in the atmosphere is designed. A problem of a round plasma formation in the atmospheric pressure air is solved by electrical wire explo-sion where an initial form of an exploding wire corresponded to a ring. A vortex current into the created plasma ring is inducted by the coil accelerator to generate intrinsic magnetic field of the plasma formation. This process is syn-chronized with reduction in the magnetic coupling between the plasma formation and the accelerator coil during the acceleration.Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½Π° ΡΠ΅Ρ
Π½ΡΠΊΠ° ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ ΡΠ° ΠΏΡΠΈΡΠΊΠΎΡΠ΅Π½Π½Ρ ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΡΠΌΡΠ²Π°Π½Π½Ρ Π· Π²Π»Π°ΡΠ½ΠΈΠΌ ΠΌΠ°Π³Π½ΡΡΠ½ΠΈΠΌ ΠΏΠΎΠ»Π΅ΠΌ Π² Π°ΡΠΌΠΎΡΡΠ΅ΡΠ½ΠΎΠΌΡ ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡΡ. Π ΠΎΡΠ½ΠΎΠ²Ρ ΡΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎΡ ΡΠ΅Ρ
Π½ΡΠΊΠΈ ΠΏΠΎΠΊΠ»Π°Π΄Π΅Π½ΠΎ ΡΠΎΡΠΌΡΠ²Π°Π½Π½Ρ Π³Π°Π·ΠΎΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡΠ° Ρ Π²ΠΈΠ³Π»ΡΠ΄Ρ ΠΊΡΠ»ΡΡΡ Π² Π°ΡΠΌΠΎΡΡΠ΅ΡΠ½ΠΎΠΌΡ ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡΡ ΡΠ»ΡΡ
ΠΎΠΌ Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΎΠ³ΠΎ Π²ΠΈΠ±ΡΡ
Ρ ΠΏΡΠΎΠ²ΡΠ΄Π½ΠΈΠΊΠ° Ρ Π²ΠΈΠ³Π»ΡΠ΄Ρ ΠΊΡΠ»ΡΡΡ, ΠΏΠΎΠ΄Π°Π»ΡΡΠΎΠ³ΠΎ ΡΠ½Π΄ΡΠΊΡΠ²Π°Π½Π½Ρ Π²ΠΈΡ
ΡΠΎΠ²ΠΎΠ³ΠΎ ΡΡΡΡΠΌΡ Π² Π³Π°Π·ΠΎΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠΌΡ ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡΡ Π·Π° Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΠΎΡ ΡΠ½Π΄ΡΠΊΡΡΠΉΠ½ΠΎΠ³ΠΎ ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΠ° ΡΠ° Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΠ΅Π½Π½Ρ ΡΠΌΠΎΠ² Π΄Π»Ρ Π½Π°ΠΊΠΎΠΏΠΈΡΠ΅Π½Π½Ρ Π΅Π½Π΅ΡΠ³ΡΡ ΠΌΠ°Π³Π½ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ Π² ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΎΠΌΡ ΡΠΎΡΠΌΡΠ²Π°Π½Π½Ρ ΡΠ»ΡΡ
ΠΎΠΌ ΠΉΠΎΠ³ΠΎ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄ΠΈΠ½Π°ΠΌΡΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΈΡΠΊΠΎΡΠ΅Π½Π½Ρ, ΡΠΎ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡ ΠΏΠΎΡΠ»Π°Π±Π»Π΅Π½Π½Ρ ΠΌΠ°Π³Π½ΡΡΠ½ΠΎΠ³ΠΎ Π·Π²βΡΠ·ΠΊΡ ΠΌΡΠΆ ΠΏΠ»Π°Π·ΠΌΠΎΠ²ΠΈΠΌ ΡΠΎΡΠΌΡΠ²Π°Π½Π½ΡΠΌ ΡΠ° ΡΠ½Π΄ΡΠΊΡΠΎΡΠΎΠΌ ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΠ°.Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΡΠ΅Ρ
Π½ΠΈΠΊΠ° ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΈ ΡΡΠΊΠΎΡΠ΅Π½ΠΈΡ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ Ρ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΠΌ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌ ΠΏΠΎΠ»Π΅ΠΌ Π² Π°ΡΠΌΠΎΡΡΠ΅ΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅. Π ΠΎΡΠ½ΠΎΠ²Ρ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΎ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π³Π°Π·ΠΎΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΡΠ΅Π΄Ρ Π² Π²ΠΈΠ΄Π΅ ΠΊΠΎΠ»ΡΡΠ° Π² Π°ΡΠΌΠΎΡΡΠ΅ΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅ ΠΏΡΡΠ΅ΠΌ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π²Π·ΡΡΠ²Π° ΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΈΠΊΠ° Π² Π²ΠΈΠ΄Π΅ ΠΊΠΎΠ»ΡΡΠ°, ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅Π³ΠΎ ΠΈΠ½Π΄ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΠΈΡ
ΡΠ΅Π²ΠΎΠ³ΠΎ ΡΠΎΠΊΠ° Π² Π³Π°Π·ΠΎΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΉ ΡΡΠ΅Π΄Π΅ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΠΈΠ½Π΄ΡΠΊΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΡΠΊΠΎΡΠΈΡΠ΅Π»Ρ ΠΈ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΠΉ Π΄Π»Ρ Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½ΠΈΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ Π² ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠΌ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΏΡΡΠ΅ΠΌ Π΅Π³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΠΊΠΎΡΠ΅Π½ΠΈΡ, ΡΡΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΠΎΡΠ»Π°Π±Π»Π΅Π½ΠΈΠ΅ ΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠΉ ΡΠ²ΡΠ·ΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΡΠΌ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΈ ΠΈΠ½Π΄ΡΠΊΡΠΎΡΠΎΠΌ ΡΡΠΊΠΎΡΠΈΡΠ΅Π»Ρ
Laser-generated toroidal helium plasmas
This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.The formation mechanism of these toroidal plasmas is identified and an estimate of their main plasma parameters is obtained. Furthermore, preliminary experiments are presented, aimed at heating these plasmas by absorption of microwave radiation, in order to counteract their transient nature.Through a tomographic reconstruction, cross-sectional images of the toroidal plasma are obtained, visualising the fluid flow responsible for the generation of the toroidal structure. The origin of the flow is traced back to the structure of the plasma kernel. The shocks generated by this kernel interact akin to a Mach reflection and generate a low pressure region whose replenishment transforms the plasma into a toroid. Schlieren imaging, complemented with a novel scanning-probe technique, and thermodynamic modelling, as well as deliberately breaking the flow symmetry, confirm the formation mechanism. A high-power, sub-microsecond rise time, pulsed magnetron source has been designed for the microwave heating experiments. Its detailed design and the effect of the microwave pulse on the plasma are discussed.This work is part of a larger study on self-organising knotted magnetic structures in plasma, which may find their application in nuclear fusion and astrophysical research. Quantum Matter and Optic