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...
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up initiator in Wiktionary, the free dictionary. An initiator can refer to: A person who instigates something. Modulated neutron initiator, a neutron source...
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reliable. For example, sealed neutron tubes have replaced radioactive modulated neutron initiators, in supplying a pulse of neutrons to the imploding core of...
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was 3.62 inches (92 mm) in diameter and contained an "Urchin" modulated neutron initiator that was 0.8 inches (20 mm) in diameter. The depleted uranium...
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Dayton Project (section Initiators)
were ultimately responsible for creating the polonium-based modulated neutron initiators that were used to begin the chain reactions in the atomic bombs...
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tamper was coated in a thin layer of boron. A polonium-beryllium modulated neutron initiator, known as an "urchin" because its shape resembled the inner shell...
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neutrons and α-particles created from a reaction in the neutron generator. The system records the temporal and spatial displacement of the neutrons and...
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some of the implosion and firing features of Green Bamboo. The modulated neutron initiator was Blue Stone. Twelve Green Grass warheads were fitted in the...
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tamper was coated in a thin layer of neutron-absorbing boron. A polonium-beryllium modulated neutron initiator, known as an "urchin", was developed to...
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Robert Oppenheimer, asked them to review the design of the modulated neutron initiator. They reported that it would work. That they had reached this...
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products needed to be conserved. Internal initiation, using a modulated neutron initiator, required Polonium-210 (210 Po), a highly radioactive element...
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a polonium-beryllium modulated neutron initiator, a development of the technique that Chadwick had used to discover the neutron over a decade before....
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(1910–1980)Pages displaying wikidata descriptions as a fallback Modulated neutron initiator – Neutron source used in some nuclear weapons Munroe effect – Explosive...
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of the uranium tamper, and in the design and adoption of the modulated neutron initiator. His presence boosted morale, and helped improve the administration...
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modulated neutron initiator to start the chain reaction. Christy worked with Klaus Fuchs, Paul Stein and Hans Bethe to develop a suitable initiator design...
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bomb's triggering mechanism, the Fuchs–Sherr polonium-beryllium modulated neutron initiator. On July 16, 1945, Sherr was present at the Trinity nuclear test...
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to assemble. The short life of their lead-acid batteries and modulated neutron initiators, and the heat generated by the fissile cores, precluded storing...
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gave Bohr credit for an important contribution to the work on modulated neutron initiators. "This device remained a stubborn puzzle", Oppenheimer noted...
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member of the Manhattan Project, co-inventor of Fuchs-Sherr modulated neutron initiator. Sir Ian Sinclair, 87, British lawyer. Sabawi Ibrahim al-Tikriti...
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radiation; and 4) the neutrons from the primary's nuclear detonation. The interstage is responsible for accurately modulating the transfer of energy...
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assemblies being sets of bomb components without the fissile pit or modulated neutron initiators. Uniforms were issued to Project Alberta's civilian personnel...
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Nuclear weapon design (section Neutron bombs)
maximum density, a burst of neutrons must be supplied to start the chain reaction. Early weapons used a modulated neutron generator codenamed "Urchin"...
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or particle accelerators during a supernova during the spin-down of a neutron star when cosmic rays or accelerated particle beams strike atoms The majority...
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Anton Zeilinger (section Neutron interferometry)
received a doctorate from the University of Vienna in 1971, with a thesis on "Neutron depolarization measurements on a Dy-single crystal" under Helmut Rauch...
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was used by the Manhattan Project as a neutron reflector, and as a component of modulated neutron initiators. Only one firm produced it commercially...
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Inertial confinement fusion (section Neutron source)
molecular motors, etc. by modulating thermal neutrons into beams of slow neutrons. In combination with fissile materials, neutrons produced by ICF can potentially...
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uranium-235 (U-235) accounting for about 0.7%. U-238 has 146 neutrons and U-235 has 143 neutrons. Different isotopes have different behaviors. For instance...
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perform the reverse transformation, recovering the original data from modulated signals. Adders and multipliers: Adders and multipliers perform arithmetic...
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radiosensitizers, and as of 2015[update] a clinical trial was underway. Boron neutron capture therapy has been tested as an alternative treatment for glioblastoma...
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exotic 11Li is known to exhibit a neutron halo, with 2 neutrons orbiting around its nucleus of 3 protons and 6 neutrons. The process known as laser isotope...
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