Ultracold neutrons (UCN) are free neutrons which can be stored in traps made from certain materials. The storage is based on the reflection of UCN by such...

in a medium (neutron moderator) at this temperature, those neutrons which are not absorbed reach about this energy level. Thermal neutrons have a different...

Neutron capture is a nuclear reaction in which an atomic nucleus and one or more neutrons collide and merge to form a heavier nucleus. Since neutrons...

pions that feed the muon source and the Ultracold Neutron source UCN produces very slow, ultracold neutrons. All these particle types are used for research...

The neutron flux is a scalar quantity used in nuclear physics and nuclear reactor physics. It is the total distance travelled by all free neutrons per...

final limit obtained with a neutron beam amounts to |dn| < 3×10−24 e⋅cm. After that, experiments with ultracold neutrons (UCN) took over. It started in...

still a common neutron source. The neutrons in nuclear reactors are generally categorized as slow (thermal) neutrons or fast neutrons depending on their...

In physics, a neutron interferometer is an interferometer capable of diffracting neutrons, allowing the wave-like nature of neutrons, and other related...

Neutron activation is the process in which neutron radiation induces radioactivity in materials, and occurs when atomic nuclei capture free neutrons, becoming...

A neutron source is any device that emits neutrons, irrespective of the mechanism used to produce the neutrons. Neutron sources are used in physics, engineering...

Neutron transport (also known as neutronics) is the study of the motions and interactions of neutrons with materials. Nuclear scientists and engineers...

neutron within a nuclide is illustrated by the decay of the carbon isotope carbon-14, which has 6 protons and 8 neutrons. With its excess of neutrons...

Neutron scattering, the irregular dispersal of free neutrons by matter, can refer to either the naturally occurring physical process itself or to the man-made...

sensitivities for most elements. The neutron flux from such a reactor is in the order of 1012 neutrons cm−2 s−1. The type of neutrons generated are of relatively...

processes in the target produce the neutrons, initially at very high energies—a good fraction of the proton energy. These neutrons are then slowed in moderators...

When embedded in an atomic nucleus, neutrons are (usually) stable particles. Outside the nucleus, free neutrons are unstable and have a mean lifetime...

search for neutron-antineutron oscillations using ultracold neutrons. The magnetic moment of the antineutron is the opposite of that of the neutron. It is...

low energy neutrons (such as thermal neutrons) the cross section σ ( E ) {\displaystyle \sigma (E)} is inversely proportional to neutron velocity. This...

to neutron-induced upsets. Neutron-induced upsets produced by energetic neutrons are important due to the natural production of high-energy neutrons by...

experiment a beam of neutrons is directed at a sample, which can be an aqueous solution, a solid, a powder, or a crystal. The neutrons are elastically scattered...

scientists and researchers from all over the world. Neutron scattering allows scientists to count scattered neutrons, measure their energies and the angles at which...

fission monitor measures the amount of neutrons incident to the sample. The efficiency is 10−4 and most neutrons traverse the device undisturbed. The monitor...

engineering, a neutron moderator is a medium that reduces the speed of fast neutrons, ideally without capturing any, leaving them as thermal neutrons with only...

deflected neutrons at different positions beyond the sample can be used to find the structure of a material, and the loss or gain of energy by neutrons can...

(May 2008). "Experimental search for neutron – mirror neutron oscillations using storage of ultracold neutrons". Physics Letters B. 663 (3): 181–185...

spit out neutrons. Proton interactions result in around ten to thirty neutrons per event, of which the bulk are known as "evaporation neutrons"(~2 MeV)...

produces neutrons through fission in a compact-core fuel element. Neutron moderators cool the neutrons to wavelengths usable experimentally. Neutrons are then...

can be adapted to detect neutrons. While neutrons do not typically cause ionization, the addition of a nuclide with high neutron cross-section allows the...

magnetic field before the sample encodes the individual velocities of neutrons in the beam into precession angles. Close to the sample the time reversal...

collimated beam of neutrons onto an extremely flat surface and measuring the intensity of reflected radiation as a function of angle or neutron wavelength. The...