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High-altitude nuclear explosion. High-altitude nuclear explosions are the result of nuclear weapons testing within the upper layers of the Earth's atmosphere and in outer space. Several such tests were performed at high altitudes by the United States and the Soviet Union between 1958 and 1962. The Partial Test Ban Treaty was passed in October ...
In nuclear EMP all of the components of the electromagnetic pulse are generated outside of the weapon. [33] For high-altitude nuclear explosions, much of the EMP is generated far from the detonation (where the gamma radiation from the explosion hits the upper atmosphere). This electric field from the EMP is remarkably uniform over the large ...
The flash created by the explosion as seen through heavy cloud cover from Honolulu, 900 miles (1,450 km) away. Starfish Prime was a high-altitude nuclear test conducted by the United States, a joint effort of the Atomic Energy Commission (AEC) and the Defense Atomic Support Agency. It was launched from Johnston Atoll on July 9, 1962, and was ...
Types of military EMP include: Nuclear electromagnetic pulse (NEMP), as a result of a nuclear explosion. A variant of this is the high altitude nuclear EMP (HEMP), which produces a secondary pulse due to particle interactions with the Earth's atmosphere and magnetic field. Non-nuclear electromagnetic pulse (NNEMP) weapons.
A Faraday cage does not offer protection from the effects of EMP unless the mesh is designed to have holes no bigger than the smallest wavelength emitted from a nuclear explosion. Large nuclear weapons detonated at high altitudes also cause geomagnetically induced current in very long electrical conductors. The mechanism by which these ...
The high-altitude nuclear tests delivered the first openly reported man-made high-altitude electromagnetic pulses (EMP). Teak, which was detonated at 252,000 feet (76.8 km) and was 3.8 megatons of TNT (16 PJ), produced an aurora-like effect that was visible from Hawaii, 700 nautical miles (810 mi; 1,300 km) displaced from the detonation. Most ...
Conrad Lee Longmire (August 23, 1921 – March 22, 2010) was an American theoretical physicist who was best known as the discoverer of the mechanism behind high-altitude electromagnetic pulse. In 1961, Longmire was awarded the Ernest Orlando Lawrence Award [1] "for continued and original theoretical contributions, requiring unusual insight, to ...
ATLAS-I. A Boeing B-52 strategic bomber being prepared for EMP testing at Trestle in 1982. ATLAS-I (Air Force Weapons Lab Transmission-Line Aircraft Simulator), better known as Trestle, was a unique electromagnetic pulse (EMP) generation and testing apparatus built between 1972 and 1980 during the Cold War at Sandia National Laboratories near ...