thermal neutrons


Also found in: Encyclopedia, Wikipedia.

thermal neutrons

pl n
(Nuclear Physics) slow neutrons that are approximately in thermal equilibrium with a moderator. They have a distribution of speeds similar to that of the molecules of a gas at the temperature of the moderator. Data concerning nuclear interactions are often given for standard thermal neutrons of speed 2200 metres per second, which is approximately the most probable speed at normal laboratory temperatures
Translations
neutrons thermiques
References in periodicals archive ?
10]B should be included in the matrix, since these elements have a high cross-section to thermal neutrons.
The expressions obtained for the spectrums of moderating neutrons allow reinterpreting the physical nature of the processes that determine the form of the neutron spectrum in the thermal neutrons.
In response, the relatively inexpensive, compact neutron generator, married to an optimally designed moderator, becomes valuable in a host of new applications using high-flux thermal neutrons and high-yield fast neutrons.
Its properties with respect to capture and fission by thermal neutrons are similar to the properties of uranium-235.
BNCT treatment produces radiation inside a tumor using boron-10 and thermal neutrons.
Thermal neutrons emitted from a radioactive substance interact with the nuclei of boron atoms within boron nitride.
An evaluation of effects of mass selection and seed irradiation with thermal neutrons on yields of corn.
0] gives the ratio of detected alphas/tritons to incident thermal neutrons.
In other words, the fast neutrons have to travel a greater distance to become thermalised, and consequently the number of thermal neutrons returned to the detector is reduced.
Thermal neutrons have wavelengths that match the distance scales found in condensed matter systems (ie.
Shall be able to use X-rays (up to 450 kV) or Thermal neutrons