Browsing Aeronautics and astronautics by Author "Jarboe, Thomas R"
Now showing items 1-8 of 8
-
Effects of Density Control on Internal Plasma Dynamics and Current Drive in HIT-SI
Victor, Brian Scott (2012-09-13)The Helicity Injected Torus with Steady Inductive Helicity Injection (HIT-SI) experiment investigates a method of current drive and spheromak formation through constant inductive helicity injection into a confinement volume ... -
Effects of nonaxisymmetry in equilibria and MHD evolution of spheromaks
Benedett, Thomas EdwinMagnetic field configurations used for magnetic confinement of plasmas are often preferred to be simple in form, with symmetry sufficient to reduce their effective dimensionality to two or fewer, as with tokamak plasmas ... -
Experimental Assessment of Confinement and Heating on the HIT-SI3 Spheromak
Everson, Christopher JamesThe presented research considers electron confinement and heating on the Steady-Inductive Helicity-Injected Torus (HIT-SI3). Specifically, the mechanisms that determine how input energy is distributed in the spheromak ... -
Measurements of neutral particles and simulations of plasma-neutral dynamics in the HIT-SI3 experiment
Sutherland, Derek AidenClean, safe, and reliable energy sources are needed to displace those harmful to people and the environment. Fusion energy is such an energy source, provided it is both technically and economically viable. The HIT-SI3 ... -
MHD Modeling in Complex 3D Geometries: Towards Predictive Simulation of SIHI Current Drive
Hansen, Christopher James (2014-04-30)The HIT-SI experiment studies Steady Inductive Helicity Injection (SIHI) for the purpose of forming and sustaining a spheromak plasma. A spheromak is formed in a nearly axisymmetric flux conserver, with a bow tie cross ... -
PID Control Simulation and Kalman Filter State Estimation of HIT-SIInjector Flux Circuit
Kraske, Matthew J.In order to implement an optimal modern control system on the HIT-SI injector voltage and flux circuits, it is first necessary to apply state estimation techniques, allowing the physical system to be observed by the ... -
Plasma Dynamics Using Ion Doppler Spectroscopy in HIT-SI3
Hooper, Charles ThomasThe HIT-SI3 experiment uses three inductive helicty injectors to form and sustain a spheromak plasma by imposed-dynamo current drive (IDCD). An ion Doppler spectrometer utilizes 72 viewing chords and a $\mu$s time resolution ... -
A Study of Plasma Dynamics in HIT-SI using Ion Doppler Spectroscopy
Hossack, AaronThe HIT-SI device is a unique experiment which uses inductive helicity injectors to form and sustain a spheromak plasma. The n = 1 symmetry of the injectors enables stable spheromak sustainment by imposed-dynamo current ...