free neutron

But it can drag in free neutrons, which have no charge.

In fact, a free neutron decays this way with a mean lifetime of about 15 minutes.

When the pressure reaches about, the nucleons are mostly free neutrons.

A small natural background flux of free neutrons exists everywhere on Earth.

Suppose we turn that shield off with a bomb and all those free neutrons are turned loose at once!

Free neutrons are unstable, with a half-life of thirteen minutes.

Outside the nucleus, free neutrons are unstable and have a mean lifetime of 14 minutes, 42 seconds.

Experimental nuclear fusion reactors produce free neutrons as a waste product.

In contrast, a free neutron (which also decays through the weak interaction) lives about 15 minutes.

While a free neutron has a half life of about 10.2 min, most neutrons within nuclei are stable.

At this point the matter is chiefly free neutrons, with a small amount of protons and electrons.

For instance, when two deuterium nuclei fuse, they often produce helium-3 and a free neutron.

Free neutrons are produced in nuclear fission and nuclear fusion.

In this region, there are nuclei, free electrons, and free neutrons.

In the core of an operating reactor there are billions of free neutrons.

Thus it is important that the frequency at which free neutrons occur is kept low, compared with the assembly time from this point.

Qualitatively, the higher the temperature, the higher the kinetic energy is of the free neutron.

For free neutrons; in most common nuclei, neutrons are stable.

The hydrogen fuses to form helium and free neutrons.

Free neutrons also decay via this process.

This requires, however, a (small) supply of free neutrons which are usually not present in such proton-rich plasmas.

Some nuclei have larger absorption cross sections than others, which removes free neutrons from the flux.

The free neutrons are emitted with a kinetic energy of 2 MeV each.

Free neutrons combine with protons to form deuterium.

Proceeding deeper, one comes to a point called neutron drip line where free neutrons leak out of nuclei.