samorzutne rozszczepienie jądra atomowego

They repeated their experiment in 1970 looking for spontaneous fission.

All these isotopes are characterized by high rates of spontaneous fission.

The first study produced evidence for a spontaneous fission with a 0.3 second half-life and another one at 8 seconds.

This further underwent spontaneous fission with a half-time of about 1.3 h.

Pu-240 has a high rate of spontaneous fission, which can cause a nuclear weapon to predetonate.

The most commonly used spontaneous fission source is the radioactive isotope californium-252.

A fourth decay by direct spontaneous fission was also proposed.

Uranium, for example, constantly undergoes spontaneous fission at a very slow rate.

One possible neutron source is californium-252 which undergoes spontaneous fission.

It was found that the final nucleus undergoes spontaneous fission.