ppt of e-bomb

1.  IN HIROSHIMA - DIED BECAUSE OF
THE ATOM BOMB ATTACK BY AMERICA
• 9th AUGUST
 IN NAGASAKI DIED FOR THE 2ND
ATTACK
6th AUGUST

2. DOES WAR MEANS ONLY
KILLING PEOPLE…?

3. The E-Bomb : A weapon of electrical
mass destruction
Presented By :
Abhay Kumar
2SD10EE061

4. Content
•Introduction
•History
•Basic Principle of E-bomb
•E-Bomb Technology Base
•Explosively pumped Flux Compression Generator (FCG)
•Design of FCG
•FCG Operation:
•High Power Microwave Sources – The Vircator
•Operation Of E-bomb
•Coupling modes..
•Protection/defense against electromagnetic bomb
•Advantages of E-bomb
•Limitations of electromagnetic bombs
•Conclusions:

5. What is an electromagnetic
bomb………………..?????
An electromagnetic bomb or E-bomb is a weapon
designed to disable electronics with an electromagnetic
pulse (EMP) that can couple with electrical/electronic
systems to produce damaging current.

6.  An Electromagnetic Pulse Bomb (or EMP) is a non-
lethal, but highly destructive, weapon that emits an
electromagnetic pulse that disables all electrical circuitry
within a certain radius.
INTRODUCTION :
In a matter of seconds, a big enough e-bomb could thrust
an entire city back 200 years or cripple a military unit.
 An e-bomb is a weapon designed to take advantage of
cutting of power in an area, destroying of machines that use
electricity.
 It can destroy Power Grids, Electronics and
Communication System along an entire coast but spare
human and other living species.

7. History
In 1925 ,the theory behind the E-bomb was proposed by scientist
Arther.H.Compton.
In 1940, the existence of the Electromagnetic Pulse was observed.
In 1998 , David Schriner a electrical engineer in US navy developed a
E-bomb whose effect cover circular area having 15 meter radius.
 In 2000 ,British scientist Bae Dynamics developed an E-bomb that
could destroy electrical and electronics system for miles.
Presently Russia ,USA ,England are equipped with this
electromagnetic weapon
In Asia India is the only country to have e-bomb.

8. Basic Principle of E-bomb
 The Electromagnetic pulse (Emp) effect.
 The Electromagnetic Pulse is an electromagnetic shock wave.
 This pulse of energy produces a powerful electromagnetic field
sufficiently strong to produce short lived transient voltages of thousands
of Volts (i.e. kilovolts) on exposed electrical conductors like wires
,printed circuit boards etc.

9. E-Bomb Technology Base:
 Power source : Battery, Capacitor bank
 Explosively pumped Flux Compression
Generator (FCG).
 High Power Microwave Device
 Antenna

11. Explosively pumped Flux Compression
Generator (FCG)
 It is a type of generator for producing EMP.
 FCG can produce tens of Mega Joules in tens to hundreds of
microseconds.
 Peak current of an FCG is 100 times that of a typical lightning stroke.

12. FCG Internals:
 Armature - copper tube / fast explosive
 Stator - helical heavy wire coil
 Initiator - plane wave explosive detonator
 Jacket - prevents disintegration due magnetic forces
Consists : Metal cylinder (called the armature), surrounded by
a coil of wire (the stator winding). The armature cylinder is filled
with high explosive, and a sturdy jacket surrounds the entire
device.

13. Design of FCG

14. FCG Operation:
 External power source pumps FCG winding with start current
 When start current peaks, explosive detonator fired to initiate
explosive burn
 Explosive pressure expands armature and creates moving short
 Moving armature compresses magnetic field

16.  Whilst FCGs are patent technology base for the generation of large
electrical power pulses, the output of the FCG is by its basic physics
constrained to the frequency band below 1 MHz
 Many target sets will be difficult to attack even with very high power
levels at such frequencies.
 A HPM device overcomes the problems, as its output power may be
tightly focused and it has a much better ability to couple energy into
many target .
Contd…..

17.  The fundamental idea behind the HPM is to amplify the resulting
electromagnetic burst into high power microwave
The principle of the vircator is that of accelerating a high Current
electron beam against a mesh (or foil) anode.
 Many electrons will pass through the anode, forming a bubble of
Space charge behind the anode. This space charge region Will oscillate at
microwave frequencies.
 If the space charge region is placed in to resonant cavity which is
appropriately tuned very high peak powers may be achieved.
High Power Microwave Sources – The Vircator

19. Operation Of E-bomb
 Capacitors connects to Stator  sets electrical current through
wires  Generates Intense Magnetic Field.
 Fuse mechanism ignites the explosive material  Explosion travels
as wave through the middle of the armature cylinder.
 Explosion passes through cylinder  Cylinder comes in contact with
stator winding  creates a short circuit  cuts the stator off from its
power supply.
 Moving short circuit compresses Magnetic Field  generates
Intense Electromagnetic burst.

20. Contd…..

22. COUPLING MODES..
 Front Door Coupling occurs typically when power from an
electromagnetic weapon is coupled into an antenna associated with radar
or communications equipment .
 Back Door Coupling through power/data cabling, telephone wiring
and destroys exposed semiconductor devices

23. THE DELIVERY OF CONVENTIONAL E-BOMBS:
 Electromagnetic warheads may be fitted to range of delivery vehicles.

24. Protection/defense against electromagnetic
bomb
Faraday cage
Site hardening
Use of motor power isolators for mains
power distribution
Destroy the delivery vehicle or launch
platform
Hide important assets

25. Advantages of E-bomb
 Permanent damages the electrical appliances such as computers and
micro processor devices.
 Easy to diffuse or to destroy the missiles.
 Destroys the communication system.
 It can even stop working of generator or cars.
It can destroy Power Grids and Electronics System along an entire
coast but spare human and other living species.

26. Limitations of Electromagnetic Bombs
 The limitations of electromagnetic weapons are determined by ,
* Weapon implementation
* Means of delivery
 Accuracy of delivery and achievable range must be considered against
the allowable damage for the chosen target.
 An inaccurately delivered weapon of large range may be unusable
against a target .
 Patients who are on the ventilation in hospital or using pacemaker
may lose there life because of no electric power

27.  If you want to see some of the effects of a E-bomb, put your laptop
in your microwave oven (at your own risks).

28. Conclusions:
 Electromagnetic bombs are Weapons of Electrical Mass Destruction
with applications across a broad spectrum of targets, spanning both the
strategic and tactical.
 E-bombs can cause hard electrical kills over larger areas than
conventional explosive weapons of similar mass.
 The E-bomb is a Useful punitive Weapon as it can cause much
economic and military damage with no loss of civilian life.
 E-bomb could be profitably used against countries which sponsor
terrorism and info-terrorism.

29. REFERENCES
[1]. Abrams, Michael, “ Dawn of The E-bomb”, IEEE
spectrum, November 2003.
[2]. Kopp, C., “A doctrine for the use of electromagnetic pulse
bombs”, Air Power Studies Centre, Paper No. 15, 1993.
[3]. Kopp, C., “ An introduction to the technical and operational
aspects of the electromagnetic bomb”, Air Power Studies
Centre, Paper No.-50,19
[5] E-Bomb – FAQ by Carlo Kopp (2012)
http://www.ausairpower.net/E-Bomb-FAQ.html
[6] How E-Bombs Work by Tom Harris
http://science.howstuffworks.com/e-bomb.htm

30. THANK U…Thank you

31. Any Doubts ???