A tamper is an optional layer of dense material surrounding the fissile material. It is used in nuclear weapon design to reduce the critical mass of a...

Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate. There are three...

A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly...

In nuclear weapon design, the pit is the core of an implosion nuclear weapon, consisting of fissile material and any neutron reflector or tamper bonded...

Tamper (nuclear weapons), a layer of dense material surrounding the fissile material Tamper, to interfere with, falsify, or sabotage Ballast tamper,...

of nuclear weapon the United States detonated over the Japanese city of Nagasaki on 9 August 1945. It was the second of the only two nuclear weapons ever...

Nuclear proliferation is the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not...

Pakistan is one of nine states that possess nuclear weapons. Pakistan began developing nuclear weapons in January 1972 under Prime Minister Zulfikar Ali...

was a British tactical nuclear weapon project in the 1950s. The project's goal was to store a number of ten-kiloton nuclear land mines in Germany. These...

yield of a nuclear weapon is the amount of energy released such as blast, thermal, and nuclear radiation, when that particular nuclear weapon is detonated...

develop and test nuclear weapons, and is one of the five nuclear-weapon states under the Treaty on the Non-Proliferation of Nuclear Weapons. The UK initiated...

Hiroshima on 6 August 1945 during World War II, making it the first nuclear weapon used in warfare. The bomb was dropped by the Boeing B-29 Superfortress...

designation "AN602", was a thermonuclear aerial bomb, and the most powerful nuclear weapon ever created and tested. The Soviet physicist Andrei Sakharov oversaw...

temperature, and surroundings. The concept is important in nuclear weapon design. When a nuclear chain reaction in a mass of fissile material is self-sustaining...

Trinity was the code name of the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT (11:29:21 GMT) on July 16,...

A weapon of mass destruction (WMD) is a biological, chemical, radiological, nuclear, or any other weapon that can kill or significantly harm many people...

The 1958 Mars Bluff B-47 nuclear weapon loss incident was the inadvertent release of a nuclear weapon from a United States Air Force B-47 bomber over Mars...

Nuclear weapons testing is the act of experimentally and deliberately firing one or more nuclear devices in a controlled manner pursuant to a military...

The non-nuclear explosion shook area residents and scattered nearly 100 pounds (45 kg) of radioactive uranium (U-238) used in the weapon's tamper. The plutonium...

procured, the Mark 4 was the first mass-produced nuclear weapon. The Mark 4 utilized a near-identical nuclear explosive package to the 1561 assembly of the...

A boosted fission weapon usually refers to a type of nuclear bomb that uses a small amount of fusion fuel to increase the rate, and thus yield, of a fission...

the first deployed nuclear weapon to have used beryllium as a reflector-tamper inside the implosion assembly (see nuclear weapon design). It is believed...

Nuclear shaped charges refers to nuclear weapons that focus the energy of their explosion into certain directions, as opposed to a spherical explosion...

generation nuclear weapons", p. 68. This temperature range is compatible with a hohlraum filling made of a low-Z material because the fission bomb's tamper, pusher...

radiation shield of a reactor core. Tamper (nuclear weapon) Neutron scattering Neutron supermirror "Neutron Reflector". Nuclear Power. Wikimedia Commons has...

500 kilotons. Nuclear weapon designer Ted Taylor was the lead designer for the Mark 18. The Mark 18 was tested once, in the Ivy King nuclear test at the...

highly enriched uranium with a large tamper. The nominal spherical critical mass for an untampered 235U nuclear weapon is 56 kilograms (123 lb), which would...

Los Alamos National Laboratory. The weapons are part of a National Nuclear Security Administration nuclear weapons lifecycle program. The W87 design includes...

decrypted to properly detonate the warhead, and anti-tamper systems which intentionally mis-detonate the weapon if its other security features are defeated, destroying...

sites, "environmental sensors that can detect minute signs of nuclear particles"; tamper-resistant, radiation-resistant cameras. Other tools include computerized...