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- Modulated_neutron_initiator abstract "A modulated neutron initiator is a neutron source capable of producing a burst of neutrons on activation. It is a crucial part of some nuclear weapons, as its role is to "kick-start" the chain reaction at the optimal moment when the configuration is prompt critical. It is also known as an internal neutron initiator. The initiator is typically placed in the center of the plutonium pit, and is activated by impact of the converging shock wave.One of the key elements in the proper operation of a nuclear weapon is initiation of the fission chain reaction at the proper time. To obtain a significant nuclear yield, sufficient neutrons must be present within the supercritical core at the right time. If the chain reaction starts too soon ("predetonation"), the result will be only a 'fizzle yield', well below the design specification, therefore low spontaneous neutron emission of the pit material is crucial. If it occurs too late, the core will have begun to expand and disassemble into a less-dense state, leading to a lowered yield (less of the core material undergoes fission) or no yield at all (the core is no longer a critical mass).For boosted fission weapons, the size of the centrally placed initiator is critical and has to be as small as possible. The use of an external neutron source allows more flexibility, such as variable yields.".
- Modulated_neutron_initiator wikiPageID "13383351".
- Modulated_neutron_initiator wikiPageRevisionID "605193239".
- Modulated_neutron_initiator hasPhotoCollection Modulated_neutron_initiator.
- Modulated_neutron_initiator subject Category:Detonators.
- Modulated_neutron_initiator subject Category:Neutron_sources.
- Modulated_neutron_initiator subject Category:Nuclear_bombs.
- Modulated_neutron_initiator subject Category:Nuclear_weapon_design.
- Modulated_neutron_initiator type Artifact100021939.
- Modulated_neutron_initiator type Bomb102866578.
- Modulated_neutron_initiator type Detonator103182232.
- Modulated_neutron_initiator type Detonators.
- Modulated_neutron_initiator type Device103183080.
- Modulated_neutron_initiator type ExplosiveDevice103305522.
- Modulated_neutron_initiator type Instrumentality103575240.
- Modulated_neutron_initiator type NuclearBombs.
- Modulated_neutron_initiator type Object100002684.
- Modulated_neutron_initiator type PhysicalEntity100001930.
- Modulated_neutron_initiator type Weaponry104566257.
- Modulated_neutron_initiator type Whole100003553.
- Modulated_neutron_initiator comment "A modulated neutron initiator is a neutron source capable of producing a burst of neutrons on activation. It is a crucial part of some nuclear weapons, as its role is to "kick-start" the chain reaction at the optimal moment when the configuration is prompt critical. It is also known as an internal neutron initiator.".
- Modulated_neutron_initiator label "Modulated neutron initiator".
- Modulated_neutron_initiator sameAs m.03c3jph.
- Modulated_neutron_initiator sameAs Q6889759.
- Modulated_neutron_initiator sameAs Q6889759.
- Modulated_neutron_initiator sameAs Modulated_neutron_initiator.
- Modulated_neutron_initiator wasDerivedFrom Modulated_neutron_initiator?oldid=605193239.
- Modulated_neutron_initiator isPrimaryTopicOf Modulated_neutron_initiator.