Conveners
Transport phenomena
- Arkadi Kreter (Forschungszentrum Juelich)
Prof.
Cary Forest
(University of Wisconsin, Madison)
10/08/2016, 09:00
Plasma diagnostics
Oral
The leak width of plasma in the WiPAL multi-dipole ring cusp$^1$ has been directly measured using a novel array of probes embedded in the insulating plasma limiters.
The large plasma volume ($\approx$10 m$^3$), small loss area associated with strong rare earth permanent magnets, and large heating power ($\le$ 200 kW) allowed for
a broad range of electron temperatures, ion temperatures,...
Dr
Peter Yushmanov
(Tri Alpha Energy)
10/08/2016, 09:40
Transport phenomena
Oral
Reducing electron heat losses in the open field region of FRC is important for sustaining higher temperature in the core and favorable beam energy deposition. Here, at Tri Alpha Energy, magnetic expander divertor will be used to attain these objectives in C-2W - next generation FRC device. A 3-D (2 velocity and 1 spatial) Vlasov Fokker Planck code Ksol has been developed to study the electron...
Dr
Elena Soldatkina
(Budker Institute of Nuclear Physics)
10/08/2016, 10:00
Transport phenomena
Oral
Most part of open magnetic systems has the device for the expansion of the plasma stream flowing out of the trap. Using of such a magnetic nozzle (expander) allows solving a series of physical and technical challenges: to reduce the thermal load on the end wall, to carry out direct recuperation of plasma energy into electricity, and so on. In addition, expanding magnetic field can also...
Dr
Ivan Chernoshtanov
(Budker Institute of Nuclear Physics)
10/08/2016, 10:20
Transport phenomena
Oral
Azimuthal current generation in a mirror trap via powerful off-axis neutral beam injection [1] is method of field-reversal configuration (FRC) formation. Theoretical consideration [2] shows that method faces with numerous difficulties, for example, MHD instabilities of high pressure plasma and fast ions current cancellation by electron current at field null. Experimental investigation of...
Jay Anderson
(University of Wisconsin-Madison)
10/08/2016, 10:40
Transport phenomena
Oral
Reconnection-driven heating of ions is a powerful process in many astrophysical and laboratory plasmas, including CT merging and reversed-field pinch (RFP) discharges. The RFP is often characterized by rapid ion heating during impulsive reconnection, generating an ion distribution with an enhanced bulk temperature, mainly perpendicular to magnetic field. In the Madison Symmetric Torus RFP, a...
Dr
R.W. (Bob) Harvey
(CompX)
10/08/2016, 11:00
Transport phenomena
Oral
The CQL3D bounce-averaged Fokker-Planck (FP) code [1] has been widely applied within the tokamak modeling community. For the reported work, it has been augmented to include axisymmetric open-field-line geometry, suitable for calculation of energetic ion and electron distributions in the low collisionality, tau_bounce << tau_collision, regime of energetic particles in mirrors. Our target...
