Sökning: "resistive wall instabilities"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden resistive wall instabilities.
1. Tearing mode and resistive-wall mode dynamics in the reversed field pinch
Sammanfattning : .... LÄS MER
2. Experimental studies of tearing mode and resistive wall mode dynamics in the reversed field pinch configuration
Sammanfattning : It is relatively straightforward to establish equilibrium inmagnetically confined plasmas, but the plasma is frequentlysucceptible to a variety of instabilities that are driven bythe free energy in the magnetic field or in the pressuregradient. These unstable modes exhibit effects that affect theparticle, momentum and heat confinement properties of theconfiguration. LÄS MER
3. Stabilisation of resistive-wall modes in fusion plasmas
Sammanfattning : For the success of thermonuclear fusion by magnetic confinement it is important to improve on the stability limits imposed by large-scale magnetohydrodynamics (MHD) instabilities. This thesis focuses on the stabilisation of the "resistive-wall mode" (RWM), an instability which affects high-pressure tokamaks but also Reversed Field Pinches (RFP). LÄS MER
4. Resistive Wall Mode Stability and Control in the Reversed Field Pinch
Sammanfattning : Control of MHD instabilities using a conducting wall together with external magnetic fields is an important route to improved performance and reliability in fusion devices. Active control of MHD modes is of interest for both the Advanced Tokamak and the Reversed Field Pinch (RFP) configurations. LÄS MER
5. Impedance and Instabilities in the MAX IV 3 GeV Ring
Sammanfattning : To ensure the beam with an ultralow emittance and high current the possible effects deteriorating the beam stability must be investigated. When ultrarelativistic particles travel in the vacuum chamber they induce electromagnetic fields which can act back on them and the following particles. LÄS MER