Encyclopedia > Slow neutron

  Article Content

Thermal neutron

Redirected from Slow neutron

A thermal neutron is a free neutron with a kinetic energy level of less than 0.025 eV (approx. 4.0e-21 J). They are named 'thermal' as this level of kinetic energy is similar to the average kinetic energy of a room-temperature gas.

Thermal neutrons have a much larger effective cross-section than fast neutrons[?], and can therefore be absorbed more easily by any atomic nuclei that they collide with, creating a heavier - and often unstable - isotope of the element as a result.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Science mythology

... give the general public a misimpression about what scientists do and how the process of science works. For example, historians of science and scientific educators often ...