Sentences with phrase «for slowing neutrons»

Fermi decided that the best material for slowing neutrons was graphite, the form of carbon commonly used as pencil lead.

Not exact matches

So for the Chicago experiment, the physicists used graphite to slow down the emitted neutrons, via multiple scattering processes.

Even better, lithium - 7 absorbs fast neutrons, fissioning to tritium plus an extra slow neutron for the lithium - 6.

It produces an intense beam of slow - moving neutrons whose photon emissions can be detected with the same setup used for earlier precision measurements of the neutron's lifetime.

Beta decay is often very slow, and, if the flux of neutrons is high, the nucleus might capture another neutron before there is time for it to undergo decay.

It might be wise to go read our moderation page for a second and come back when you understand that neutrons emerge from fission reactions at high speeds and that we typically like to slow them down to thermal energies in order to increase their chances of continuing the chain reaction.

The resulting spongelike openings were then filled with SCW.During the flood, that pore water provided an enormous surface area for slowing and capturing neutrons and other subatomic particles.

For years, astronomers have estimated the age of a pulsar by measuring the rotation period of its neutron star and the tiny amount by which that rotation slows down over time.

Heavy water is used as a moderator in some reactors because it slows neutrons effectively and also has a low cross section for absorption of neutrons.

Fuel — Uranium 235 Natural uranium contains only 0.7 % of U-235 Must be enriched typically to about 3 % for commercial power Uranium 235 will only absorb thermal (slow) neutrons requiring a moderator to slow the neutrons down by colliding with them.