Generalized High-Energy Thermionic Electron Injection at Graphene Interface

Thermionic Energy Conversion Based on Graphene van der Waals Heterostructures

Seeking for thermoelectric (TE) materials with high figure of merit (or ZT), which can directly converts low-grade wasted heat (400 to 500 K) into electricity, has been a big challenge. Inspired by the concept of multilayer thermionic devices, we propose and design a solid-state thermionic devices (as a power generator or a refrigerator) in using van der Waals (vdW) heterostructure sandwiched b...

Thermionic and Photo-Excited Electron Emission for Energy-Conversion Processes

*Correspondence: Timothy S. Fisher , Birck Nanotechnology Center, 1205 West State Street, West Lafayette, IN 47907, USA e-mail: [email protected] This article describes advances in thermionic and photo-emission materials and applications dating back to the work on thermionic emission by Guthrie (1873) and the photoelectric effect by Hertz (1893). Thermionic emission has been employed for elec...

Low Emittance Thermionic Electron Guns*

Elastic Electron - Deuteron Scattering at High Energy

Relativistic formulae for the deuteron electromagnetic form factors are calculated in the impulse approximation retaining terms to all orders in Q2/M2 z wc>2. The formulae are given as double integrals over the deuteron wave functions in momentum space, and hence can be evaluated for any deuteron model. We evaluate these formulae numerically for 9 different deuteron models: Reid soft core, two ...

Radiation protection at high energy electron accelerators.

An overview is presented of radiation protection at high energy electron accelerator facilities. By 'high energy' is meant the energy domain beyond a few tens of MeV, where electromagnetic showers are the determining and dominant factor for beam interactions with matter. The basic components of electron accelerators are described and their potential impact on radiation safety. The paper then co...