Illustrated Asymmetrical Fission

This section consists of a set of illustrations depicting what happens during the fission of U235.

The two ends of the U235 nucleus are not balanced, one end has one more neutron than the other. The end that has one less neutron wants to capture a neutron to establish nuclear balance.

Balance is established when a neutron carrying extra energy in the form of its velocity is captured by the deficient end of the nucleus. The extra energy from neutrons velocity starts the long ends of the newly created U236 nucleus to vibrate. Because the ends of the uranium nucleus are now balanced the vibration is harmonic. The result of the harmonic vibration is the long ends of the new U236 nuclei break off.

The Results Is Fission!

ZOME Model of U235

ZOME Model of U235

Add a Neutron

A neutron is added to the nucleus of U235 to form U236.

U235 - add a neutron to make U236

Harmonic Vibration

The ends of the uranium nucleus are balanced and the excess energy from the neutron starts harmonic vibration in the now identical and balanced long ends of the new U236 nucleus.

U236 can vibrate harmonically because the End Caps
are equal. U236 does vibrate harmonically because of the 
energy gained from the neutron

Fission Starts

The harmonic vibration results in the ends of the uranium 236 breaking off. At this momentary instant the nucleus exists as three pieces, the central kernel and two end caps. The central kernel will be the same regardless of the original nucleus thus it forms the heavier daughter product. The heavier the starting nuclei the longer the ends and thus the heavier the lighter daughter product will be. Thus the weight of the lighter daughter is proportional to the weight of the beginning nuclei.

The vibrating nucleus breaks along weak planes 
creating the heavy daughter product from the Center 
Kernel, plus two semi-free End Caps

Fission Continues

At the next instant the central kernel moves in one direction and the two end caps move in the other. The ends are sufficiently close that the vibration momentum of the two end caps have an inward directional component to their collapse.

The Kernel moves out from between the End Caps 
ripping off a couple of neutrons in the process

Fusion Phase I

The ends momentum and the strong force bring the two ends together. As the two ends merge, they begin to release fusion energy.

The End Caps start to merge to form the 
lighter daughter product

Fusion Phase II

As the two end fuse and collapse together into a tighter and more compact nuclear structure they release addition energy of fusion.

The merger of the two End Caps is fusion and
is were the majority of the energy of fission is derived

Fission Data

The fission yield chart shows the daughter product yield for U233, U235 and Pu239. In each case the heavy daughter product distribution remains the same as predicted by this model and the existence of a nuclear central kernel. The lighter daughter product shift to a higher A with a higher fissioning nucleus.

The graph on the right indicates the center of the daughter product distributions for element between A=228 through A=257. Note that the heavier daughter products distribution center about A=140 which is explained by the existence of the nuclear central kernel. The straight line increase of the A value of the lighter daughter product is the result of the extra nucleons being added to the end caps extending from the central kernel, not added to the central kernel. The structure of the nucleus defined by this model explains why fission is asymmetrical. The model indicates why fission occurs and why it starts where it does. All the aspects and question about fission are addressed by this model.

Fission daughter product distribution (linear scale) Graph trend line of fissions lighter daughter 
products and where it intersects the weight
of the heavy fission daughter product.