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Electromagnetic Theory JULY 2008, Electrical and Electronic Engineering Department
MOHD AZMAN ARIF BIN ALIBEDING (8306) NURFATIHAH BINTI KHALID (9116) AMINUDDIN BIN AZMAN (9114) MOHD SHAFIQ BIN ABAS (9460) LUJIRIN LAMPISUNG (9543)

Sunday, October 12, 2008

Theory of EMP-Bomb

EMP-Bomb can be easily understood like this. All of us know that microwave oven is functioning using the theory of electromagnetic wave that had the same frequency as water. When the frequency of microwave oven is same as the frequency of water in the food, the molecules of water start to vibrate. The vibrating molecules will produce heat that will cook the food. Then, how about we substitute the food with Integrated Circuit (IC) into the microwave oven? There are no water molecules in IC but how can it burnt? The answer is easy; it is due to Electromagnetic Field (EMF) produce by the microwave oven that induced the current in IC, make the current very high, and everything burnt because of high current and voltage.

Nuclear type is much more dangerous than non-nuclear type because of its ability to harm human life directly. When nuclear bomb is detonated, a stream of highly accelerating photon is produced. The stream of photon will strike the hydrogen and oxygen atom in atmosphere, thus highly accelerating electron are produced. The accelerating electron will produced what we call Electromagnetic Pulse (EMP). The EMP will move away from the detonated place, as far as 1000 miles. The EMP will act as a big wave noise and disturb other wave such as radio wave, television wave and satellite wave thus any transmitted information cannot be received. Moreover, when the EMP strikes any active electronic components, it will cause EMF that surrounded the components. The EMF will cause a high voltage across the components, so the components will burn. These effects are worse to ICs as there had very low cut-off voltage.




For the non-nuclear type, it is only affected the electronic components without any harm to human life directly. The principle is simple to imagine; a bomb that full of compressed EMF is detonated, thus the EMF will separated and strike the electronic components within it moving radius. The theory how to perform this mechanism is explained in the methodology part. This type of nuclear can be categorized into 3 types; Ground Detonation, Mid-Air Detonation, and High-Altitude Detonation. For Ground Detonation, the radius of EMP explosion is small compare to the other two types. However, this type is the easiest one to control the explosion radius. For the Mid-Air Detonation, the radius of EMP explosion is larger than Ground Detonation but smaller that High-Altitude Detonation. The explosion radius can also be controlled like Ground Detonation. For High-Altitude Detonation, the radius of EMP explosion is the largest compare to the other two types. The explosion radius is hard to control. So, it is always the best choice for scientist and engineers to choose the Mid-Air Detonation types


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