Sentences with phrase «slow neutrons»

Slow neutrons down to walking pace and subtle changes in their behaviour could reveal signs of exotic new physics

A map of slow neutrons shows there is a broad deposit of water around the Martian south pole.

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

And the Americans chose to slow the neutrons emitted from their enriched uranium with more readily available graphite, rather than heavy water.

The water slows the neutrons, allowing the chain reaction to continue at a steady pace.

A sudden wave of slow neutrons triggers a screen alert, and the device operator learns that a hydrogen source, most likely a mine, has been located.

Lithium - 6 has an enormous cross-section to capture slow neutrons, fissioning to tritium with a large energy yield.

«Lots of people verified that indeed when uranium is bombarded by neutrons, slow neutrons in particular, a process occurs which releases tremendous amounts of energy.»

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

In addition to its unique fuel cycle, the TerraPower design employs a high - temperature, liquid metal core cooling technology suited to a breeder reactor with «fast» neutron activity, rather than today's predominant reactors whose water cooling systems slow neutrons.

How far they travel into space depends on their speed, and slower neutrons don't travel far enough to be seen by particle detectors in orbit around Earth.

In these cases, the neutrons are moderated to lower their speed in the reaction as the chances of fission are greater with slow neutrons than with fast neutrons.

HFIR's neutron beams were cooled to minus 253 degrees Celsius (minus 424 degrees Fahrenheit) to slow the neutrons down, so they could probe molecular features of the biological samples.

Stapp arrives at this conclusion through a quantum mechanical analysis of the possible results of a double spin - measuring experiment, i.e., an experiment in which one measures the spins of each of two slow neutrons, say, which have just collided.

All but two of the 440 or so commercial nuclear reactors operating are thermal, and most of them — including the 103 U.S. power reactors — employ water both to slow neutrons and to carry fission - created heat to the associated electric generators.

These less energetic, slow neutrons are reflected back toward the detector; nonradioactive helium - 3 in low - pressure pipes collects them and emits electrons.

In other instances, analysts had judged a plutonium operation was safe, but then more workers — whose bodies reflect and slow neutrons — wound up being present nearby, creating unanticipated risks.

The superabundant elements in the S - type stars come from the slow neutron process.

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.