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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A criticality accident, sometimes referred to as an excursion or a power excursion, is an accidental increasing nuclear chain reaction in a fissile material, such as enriched uranium or plutonium. This releases a surge of neutron radiation which is highly dangerous to humans and causes induced radioactivity in the surroundings. A critical or supercritical nuclear fission (one that is sustained in power or increasing in power) normally is supposed to occur only inside…mehr

Produktbeschreibung
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A criticality accident, sometimes referred to as an excursion or a power excursion, is an accidental increasing nuclear chain reaction in a fissile material, such as enriched uranium or plutonium. This releases a surge of neutron radiation which is highly dangerous to humans and causes induced radioactivity in the surroundings. A critical or supercritical nuclear fission (one that is sustained in power or increasing in power) normally is supposed to occur only inside reactor cores and (very occasionally) inside some test facilities. Although dangerous, the low densities of fissile material and the long insertion time involved in these events limit the fission yield and peak power, preventing them from becoming a large scale nuclear explosion.