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The initial velocity after fission is something like 30,000 km/sec, 10 percent of the velocity of light. In moderated reactors the neutrons are slowed down by collisions with the moderator atoms and eventually (if not captured) arrive at the mean velocity of the moderator atoms themselves, or more correctly they achieve the same distribution of such velocities, which is around several km/sec depending on the moderator material and its temperature. These neutrons are then said to be thermalised as they have come into equilibrium with the thermal related moderator velocity distribution.

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A slow neutron, also called a thermal neutron, has an energy in the neighborhood of 0.025 million electron volts (MeV). The velocity of such a neutron is about 2.2 kilometers per second, or roughly 1.4 miles per second.

A fast neutron will have an energy of around 1MeV. This equates to about 14 000 km/sec. The Deuterium - Tritium fusion produces fast neutrons of ~14MeV, - about 52 000 km/sec. This is fast enough to fission uranium 238.

A thermal neutron has an energy of ~0.025eV, equivalent to a velocity of about 2.2 km/sec. This slow enough to guarantee many more thermal collisions.

Current is not carried by neutrons, since they don't have an electric charge.Neutrons basically remain in their nucleus, so they move at whatever speed the atoms move. In many cases, their average velocity will be zero (though their average speed won't be zero, since they can vibrate back and forth); if the current is carried by ions, then of course the neutrons will move along with their ions, at an average speed that is a fraction of a millimeter per second.

A neutron can go at any speed, from zero to near the speed of light.

It can travel at any speed, from zero to near the speed of light.

Recent experiments show it can POSSIBLY be slightly faster than the speed of light. This has yet to be confirmed, stay tuned.

Q: What is speed of fast neutron?

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uranium 238 is a fast neutron absorber the answer is correct but for more explanation:- when uranium 238 is bombard by neutron >>> uranium 238 , undergoes B decay>>>Np 239 ,undergoes B decay >>> Pu 239 finally undergoes alpha decay >>> fissile U

Velocity, or Speed

"Speed" means how fast something goes.you need to be more specific about the speed

speed How fast in which direction is velocity.

fast

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No, a photon always moves at the speed of light, and nothing with non-zero mass (which includes neutrons) can move that fast

When U-238 absorbs a fast neutron it forms plutonium-239

In order to cause an atomic nucleus to become unstable so that it will undergo fission, you have to add a neutron. If a slow neutron collides with an atomic nucleus, it will be absorbed into the nucleus and become part of it. The nuclear attraction of the nucleus is strong enough to grab a slow neutron. But a fast neutron cannot be captured because it has too much kinetic energy. The attraction of the nucleus is not enough to stop the motion of a fast neutron. Even if a fast neutron makes a direct hit on an atomic nucleus, it is just going to bounce off.

Observations show that neutron stars spin very rapidly.

Fast speed boats are made of materials that are used to make fast speed boats.

The element is determined by the number of protons. When uranium captures a fast neutron it is still uranium but has an increased atomic mass. Fast neutron capture may encourage a further reaction but it depends on which uranium isotope you start with as to the increase in probability some further reaction will occur and which reaction that might be.

Yes that is quite a fast speed!

Helium-3 has a high cross section for thermal neutron absorption. For fast neutrons you must either thermalize the neutrons for use with boron or helium-3 based proportional counters or use a fast fission chamber based on fast fission of uranium. It's worth noting that a uranium based fast fission detector is really only useful in extraordinarily high neutron fluxes like that of a reactor.

That depends on the speed. After deciding how fast you will travel, divide the distance by the speed to get the time.That depends on the speed. After deciding how fast you will travel, divide the distance by the speed to get the time.That depends on the speed. After deciding how fast you will travel, divide the distance by the speed to get the time.That depends on the speed. After deciding how fast you will travel, divide the distance by the speed to get the time.

Fast speed boats are made of materials that are used to make fast speed boats.

because their legs can take fast speed and their tail can help turn their body at fast speed because their the length of their tail.

uranium 238 is a fast neutron absorber the answer is correct but for more explanation:- when uranium 238 is bombard by neutron >>> uranium 238 , undergoes B decay>>>Np 239 ,undergoes B decay >>> Pu 239 finally undergoes alpha decay >>> fissile U