We'll control the nuclear reaction with cadmium rods that capture excess neutrons before they strike uranium atoms.

The control elements, called control rods, are filled with pellets of substances like hafnium or cadmium that readily capture neutrons.

In this experiment, the tritium nucleus captured neutrons from the fast-moving deuterium nucleus.

The thorium blanket can effectively capture leaked neutrons from the core region.

Cs also captures neutrons with a cross section of 13.00 barns, becoming medium-lived radioactive Cs.

Capturing further neutrons, it becomes cadmium-115, which decays to indium-115 via another beta decay.

The B isotope is good at capturing thermal neutrons (see neutron cross section).

Deuterium ("heavy hydrogen") already has the extra neutron that light hydrogen would absorb, reducing the tendency to capture neutrons.

In the end, the player with the most captured neutrons will win the game.

Ac can further capture neutrons resulting in small amounts of Ac.