How does a nuclear weapon initiator function?

A nuclear weapon initiator, sometimes called a neutron initiator, functions by producing a burst of neutrons at the precise moment that the fissile material reaches its most supercritical state. This injection of neutrons starts the chain reaction uniformly and rapidly throughout the compressed core, ensuring a more efficient and powerful explosion. One common type of initiator, known as a polonium-beryllium initiator, consis....