Author: Samuel GoldsmithPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Investigation of Plasma in Magnetic Field
Author: Samuel GoldsmithInvestigation of the Compression of Magnetized Plasma and Magnetic Flux
Author: Dimitry MikitchukPublisher: Springer
ISBN: 3030208559
Category : Science
Languages : en
Pages : 91
Book Description
The present research studies the fundamental physics occurring during the magnetic flux and magnetized plasma compression by plasma implosion. This subject is relevant to numerous studies in laboratory and space plasmas. Recently, it has attracted particular interest due to the advances in producing high-energy-density plasmas in fusion-oriented experiments, based on the approach of magnetized plasma compression. The studied configuration consists of a cylindrical gas-puff shell with pre-embedded axial magnetic field that pre-fills the anode-cathode gap. Subsequently, axial pulsed current is driven through the plasma generating an azimuthal magnetic field that compresses the plasma and the axial magnetic field embedded in it. A key parameter for the understanding of the physics occurring during the magnetized plasma compression is the evolution and distribution of the axial and azimuthal magnetic fields. Here, for the first time ever, both fields are measured simultaneously employing non-invasive spectroscopic methods that are based on the polarization properties of the Zeeman effect. These measurements reveal unexpected results of the current distribution and the nature of the equilibrium between the axial and azimuthal fields. These observations show that a large part of the current does not flow in the imploding plasma, rather it flows through a low-density plasma residing at large radii. The development of a force-free current configuration is suggested to explain this phenomenon. Previously unpredicted observations in higher-power imploding-magnetized-plasma experiments, including recent unexplained structures observed in the Magnetized Liner Inertial Fusion experiment, may be connected to the present discovery.
Investigation of the Escape of Charged Particles from a Plasma in a Magnetic Field
Author: L. L. PasichnykPublisher:
ISBN:
Category : Plasma electrodynamics
Languages : en
Pages : 20
Book Description
Plasma Physics of the Local Cosmos
Author: National Research CouncilPublisher: National Academies Press
ISBN: 9780309092159
Category : Science
Languages : en
Pages : 100
Book Description
Solar and space physics is the study of solar system phenomena that occur in the plasma state. Examples include sunspots, the solar wind, planetary magnetospheres, radiation belts, and the aurora. While each is a distinct phenomenon, there are commonalities among them. To help define and systematize these universal aspects of the field of space physics, the National Research Council was asked by NASA's Office of Space Science to provide a scientific assessment and strategy for the study of magnetized plasmas in the solar system. This report presents that assessment. It covers a number of important research goals for solar and space physics. The report is complementary to the NRC report, The Sun to the Earthâ€"and Beyond: A Decadal Research Strategy for Solar and Space Physics, which presents priorities and strategies for future program activities.
Investigation of Plasma Interaction with a High-Frequency Magnetic Field Increasing Toward the Periphery
Author: N. A. BorzunovExperimental Investigation of Plasma Micro-instabilities in Crossed Magnetic and AC Electric Fields
Author: Alexandros J AnastassiadesPublisher:
ISBN:
Category : Electric waves
Languages : en
Pages : 298
Book Description
Plasma Behavior in a Romac Magnetic Field
Author: L. S. CombesPublisher:
ISBN:
Category : Magnetic fields
Languages : en
Pages : 30
Book Description
A PLASMA CONTAINMENT DEVICE ENTITLED ROMAC (ROTATED MAGNETIC CUSP) WASCONSTRUCTED. AN ATTEMPT WAS MADE TO COMBINE THE BASIC STABILITY ADVANTAGES OF FOUR-POLE LINE CUSP WITH THE LOW LOSS RATE OF A MORROR FIELD. THE MAGNETIC FIELD FOR ROMAC WAS PRODUCED BY ADDING A MIRROR FIELD ORTHONGONALLY TO THE CUSP FIELD. USING PULSE TECHNIQUES AN IONIZED GAS WAS CREATED WITHIN A BICONICAL CHAMBER AND THE ROMAC MAGNETIC FIELD PRODUCED TRANSIENTLY WITH THE MIRROR FIELD ALONG THE AXIS OF THE CHAMBER(Z AXIS) AND THE CUSP FIELD IN THE X-Y PLANE. MEASUREMENTS WITH MAGNETIC PROBES AND LIGHT PIPES SHOW THAT A DISTURBANCE IN THE MAGNETIC FIELD, ACCOMPANIED BY AN INCREASE IN LIGHT INTENSITY, STARTED AT THE PERIPHERY OF THE PLASMA CHAMBER AND WAS PROPAGATED INWARD AT TWO VELOCITIES TO THE CENTRAL AXIS. DETAILED MEASUREMENTS WERE MADE ON THE MAGNETIC FIELD CONFIGURATION. THESE INDICATE THAT, AT THE TIME THE SECOND WAVE ARRIVED AT THE AXIS, THE MIRROR HIELD HAD BEEN TO A LARGE EXTENT SEPARATED FROM THE CUSP FIELD SO THAT MOSTLY MIRROR FIELD EXISTED THROUGHOUT THE CENTRAL REGION, WHILE MOSTLY CUSP FIELD EXISTED IN THE OUTER REGION. THE INTENSITY OF THE FIELD AT THIS TIME IN THE CENTRAL REGION INDICATES THAT THE CUSP FIELD WAS COMPRESSING THE PLASMA AND MIRRORFIELD IN THIS REGION WERE EVEN LARGER THAN THE MAXIMUM INTENSITY OF THE APPLIED MIRROR FIELD.
Investigation of Magnetic Field Penetration Into a Low-Resistivity Plasma
Author: Boaz RubinsteinInvestigation of a Plasma Accelerator with Magnetic Field Arranged to Produce a Divergent-nozzle Effect
Author: Joseph D. BrooksPublisher:
ISBN:
Category : Magnetic fields
Languages : en
Pages : 42
Book Description
Plasma Science
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309052319
Category : Science
Languages : en
Pages : 231
Book Description
Plasma science is the study of ionized states of matter. This book discusses the field's potential contributions to society and recommends actions that would optimize those contributions. It includes an assessment of the field's scientific and technological status as well as a discussion of broad themes such as fundamental plasma experiments, theoretical and computational plasma research, and plasma science education.