Essays about: "Thermionic Emission"

Found 3 essays containing the words Thermionic Emission.

1. 1. Improving the understanding of photoelectron currents on Solar Orbiter : Utilizing theory and empirical measurements

   University essay from Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

   Author : Melker Marminge; [2023]
   Keywords : Solar Orbiter; Photoelectric Currents; Photoelectric Effect; Thermal Bending; Outgassing; Thermionic Emission; Numerical Approximation; Physical Modeling;

   Abstract : Spacecraft experience electric currents on conductive materials exposed to sunlight, which introduces noise in scientific data. These currents are mainly due to the photoelectric effect and should therefore be proportional to the inverse square heliocentric distance. READ MORE

3. 2. Modelling of Dust Transport in Reverse Field Pinch Configuration

   University essay from KTH/Rymd- och plasmafysik

   Author : Jean-Philippe Banon; [2013]
   Keywords : ;

   Abstract : The DDFTU code has been modified and updated to study the transport of dust in the reverse field pinch (RFP) EXTRAP-T2R. The DDFTU code solves the coupled equations of charging, heating and motion of a dust grain immersed in a plasma whose profiles are given. READ MORE

4. 3. Dynamics of metallic dust particles in tokamak edge plasmas

   University essay from KTH/Rymd- och plasmafysik

   Author : Ladislas Tancrède Raymond Vignichouk; [2013]
   Keywords : Plasma physics; dust; tokamak edge plasma;

   Abstract : The study of dust dynamics in tokamaks has been carried out by means of the DDFTU numericalcode solving the coupled equations of motion, charging and heat balance for a dust grainimmersed in plasmas with given profiles. The code has been updated to include (i) a non-steadystate heat balance model and phase transitions, (ii) geometrical properties of the vessel suchas gaps, (iii) realistic boundary conditions for dust-wall collisions. READ MORE