The study object is a flat diode.

In the Particle Tracking solver, in the emission model settings (Edit Particle Area Source – Tracking emission model – Emission Settings) for Space Charge Limited Emission, Thermionic Emission, there is a Kinetic Settings tab (Fig. 1).

1) If temperature is selected as the kinetic characteristic (for Uniform distribution - Kinetic type: Temperature, for Maxwell distribution - Temperature), then what value should be set, the cathode temperature?

2) Velocity is selected as the kinetic characteristic (for Uniform distribution - Kinetic type: Velocity). The dependence of the emission current on the velocity I(v) is obtained. The emission current decreased with increasing speed (Fig. 2).

Energy is chosen as the kinetic characteristic (for Uniform distribution - Kinetic type: Energy). The dependence of the emission current on the energy I(U) is obtained. The emission current increased with increasing energy (Fig. 3).

How to understand the opposite behavior of the dependencies under consideration if energy and velocity are directly related: U= mv^2/(2*e)?

3) In the Thermionic Emission model settings, the temperature appears in both General and Kinetic Settings (Fig. 4). The temperature value in both General and Kinetic Settings should be the same?