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Blowing Up The Bombers

One of the most critical imperatives for Israel right now is to stop the suicide bombing.  One of  the best ways would be to blow up the bombs — and preferably the bomber along with it —  prematurely.  The ideal would be to blow up the bomber so only he (or the occasional she) dies and no innocent Israelis.

Here are two different versions of how to accomplish this.

The bomb is set off by an electrical blasting cap.  The suicide belt contains, in addition to the explosives, a battery.  Two wires come out of the battery;  two wires come out of the blasting cap.  One battery wire is connected to one blasting cap wire;  the other two are unconnected and separate until the bomber puts them together (either physically touching them together or with a switch) completing the circuit.  The resultant electrical charge is carried to a thin bridge wire inside the blasting cap.  The electricity heats up the bridge wire to such a fiery temperature that the primer, such as lead azide, detonates, which in turn sets off the TNT.

The key thing to realize here is that the bridge wire doesn’t care where the electrical energy comes from.  From a battery, or from another source — such as a sufficiently powerful radio frequency — it doesn’t matter.  If there is enough electricity, the bridge wire will heat up enough to set off the primer.

Further, the wires coming out of the battery and the blasting cap which the bomber puts together to blow himself up can act as an antenna.  All you need is the right radio frequency — between 200 to 600 megahertz (MHz) — and the wires, acting as an antenna, will pick up the RF energy, transmit it down to the bridge wire, and… kaboom.

The megahertz frequency required depends on two factors:  the length of the battery and blasting cap wires, and the amplitude (the power measured in watts) of the frequency. 

For a wire to act efficiently as an antenna, it has to be no less than one-quarter of the length of the radio frequency wavelength.  The energy pick-up drops with the square of the wavelength, if the antenna is less than one-quarter wavelength long.  The shorter the wire, the shorter the wavelength must be for efficient coupling.

The higher the frequency, the shorter the wavelength.  A 200 MHz frequency radio wave has a wavelength about five feet or 60 inches long.  600 MHz has a wavelength of about twenty inches long.  For a wire to act as an antenna, efficiently coupling or conducting electrical energy transmitted at 200 MHz, it would have to be at least 15 inches long (one-quarter of 60);  at 600 MHz, 5 inches.  (Note:  the wire can be longer than a quarter-wavelength;  if it is longer you don’t need to lower the frequency for efficient coupling.)

Experiments could be quickly done using captured bomb belts (with explosives removed) to determine what frequencies would be best for detonating the blasting caps, at what amplitude and distances, given the length of wire used in the belt.

It is the total length of wire used in the belt, the total of all four battery and blasting cap wires, that count.  It is quite unlikely all four wires will total less than five inches in any given bomb belt, and most likely be at least 15 inches — so 200 to 600 MHz seems the appropriate frequency range.

200 to 600 MHz will also work with cell phone detonators, which also has wires at least a few inches long connected to a blasting cap, and can act as an antenna.

Thus version one.  At every checkpoint in Israel, have people and vehicles pass between two walls of sandbags about 7 feet high and 30 feet long.  Put two waterproof tarps on the bottom and along the top forming a floor and roof.  Midway, put an electrical coil — a single turn of 12 gauge wire — between the floor tarps (the bottom to keep the coil dry, the top so it can’t be seen).  Run another coil between the roof tarps directly above the bottom coil.  Couple the coils to a radio transmitter adjusted with an antenna coupler.  The coils must be in the same electrical plane — horizontal — as the bomb belt wrapped around the bomber standing vertically.

A short distance from these two horizontal coils, run another coil as a continuous loop, under the bottom tarps, along one sandbag wall, between the roof tarps, and down the other sandbag wall.  This coil is in a vertical electrical plane to detonate belts hidden in vehicles and laying flat.

Both the amplitude and frequency of the radio energy going through the coils will need to be adjusted.  One kilowatt of radio energy transmitting at 200 megahertz may likely prove sufficient to be picked up by the wires in a belt bomb worn by an individual only a few feet or so away. It may take two kilowatts, or it may take a higher MHz.  But once that is determined, any terrorist wearing a bomb belt walking past the coil loop will be blown apart — and since the sandbags contain the explosion, all by his lonesome.

With vehicles, the metal will shield the RF frequency, but it will pass through windows closed or open.  A car’s trunk or ambulance’s back hatch should be open while passing through.  Higher amplitudes should be used, say around 5 kilowatts.

Version two is to sweep entire areas with RF energy, setting off any bombs, or blasting caps in the area.  This, however, requires far more power due to the famous inverse square law:  the amount of RF energy required multiplies with the square of the distance. 

To set off a bomb belt a few feet away, such as at sandbagged checkpoints, requires only a few kilowatts (1-2 for individuals, up to 5 for vehicles).  To set off a bomb one or two hundred feet away (say, half a block) would require 50 to 100 kilowatts. 

Armored personnel carriers equipped with 50,000 watt radio transmitters systematically driving through Palestinian areas could set off the blasting caps of any bombs in that area.  A two-ton truck with a TV camera could act as a RPV (remotely piloted vehicle), with a 200hp engine running a generator to power a transmitter for a 100kw RF output.  Any blasting caps out of their metal shipping containers, in a bomb or not, within a one or two hundred foot radius, will blow.

No harm is done to innocent Israelis or Palestinians with this method.  Harm is done to only those with bombs.  And the more harm done to them the better.