neutron with a kinetic energy close to that of neutrons in thermal equilibrium with the atomic nuclei of the surrounding medium
Note 1 to entry: In the case of a maxwellian nuclei distribution, the most probable energy is equal to 0,025 eV (1/40 eV) at 293 K. Note 2 to entry: In practice the upper limit is about 1 eV. Note 3 to entry: This entry was numbered 393-12-79 in IEC 60050-393:2003.
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