Start studying Bird Classification Review. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
The neutron detection temperature, also called the neutron energy, indicates a free neutron 's kinetic energy, usually given in electron volts. The term temperature is used, since hot, thermal and cold neutrons are moderated in a medium with a certain temperature.pithermal neutrons have energies between 1 eV and 10 keV and smaller nuclear cross sections than thermal neutrons.
Wiktionary(1.97 / 30 votes)Rate this definition: 1  thermal energy(Noun) The internal energy of a system in thermodynamic equilibrium due to its temperature. 2  thermal energy(Noun) A form of energy; sensible energy; heat. 3  thermal energy(Noun) The energy released by an explosion.