neutrons造句

We also produce neutrons.

When one of these neutrons hits another uranium atom, that atom can split, generating more neutrons and so on.

So if we start up here, fast neutrons produced by fission, by thermal fission and then you add the total number of fast neutrons produced.

The fission process would be controlled using neutrons produced by a linear accelerator's proton beam.

Within an atom's nucleus, neutrons and protons jostle and change energy according to quantum mechanics, too.

As the universe expanded and cooled, some of these particles merged to form neutrons and protons.

The highest known magic number for neutrons alone is 126. Lead, with 82 protons and 126 neutrons, is thus "doubly magic" and the heaviest stable isotope in the periodic table.

They all have the same Z, the same proton number, but different A, which means number of neutrons varies.

The process stripped protons and neutrons from the bismuth atoms, lowering the atoms' weight to that of gold atoms.

Ultimately ending up with a group of thermalized neutrons that also have a certain probability of leakage from the reactor.

These rods, made of neutron-absorbing materials such as boron, mop up excess neutrons and quench the chain reaction.

If fusion was taking place, then neutrons flying through the plastic would cause protons within the material to recoil, leaving telltale tracks.

The control rods soak up the neutrons that mediate the chain reaction which produces most of a reactor's energy, shutting it down.

When it had cooled further, these protons and neutrons were able to get together to form the nuclei of the lightest elements-hydrogen, helium and lithium.

And the moderator also has an absorption cross section that in fact can be used not only to slow down neutrons but as a neutron absorber.

This is where having a negative PCR is handy, because it automatically limits the number of neutrons flying through the reactor, so it damps itself down after a momentary power increase.

"Its use in medicine has declined because of its cost, and its use in consumer goods (to illuminate watch and clock hands and numbers, as well as instrument dials) was halted because it can cause radiation injury. It is still used for some radiography and as a source of neutrons. "