Particle beam weapon
Encyclopedia
A particle beam weapon uses an ultra-high-energy beam of atoms or electron
Electron
The electron is a subatomic particle with a negative elementary electric charge. It has no known components or substructure; in other words, it is generally thought to be an elementary particle. An electron has a mass that is approximately 1/1836 that of the proton...

s (i.e. a particle beam
Particle beam
A particle beam is a stream of charged or neutral particles which may be directed by magnets and focused by electrostatic lenses, although they may also be self-focusing ....

) to damage a material target by hitting it, and thus disrupting its atom
Atom
The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus contains a mix of positively charged protons and electrically neutral neutrons...

ic and molecular structure. A particle beam weapon is a type of directed-energy weapon
Directed-energy weapon
A directed-energy weapon emits energy in an aimed direction without the means of a projectile. It transfers energy to a target for a desired effect. Intended effects may be non-lethal or lethal...

, which directs energy in a particular direction by a means of particle projectiles with mass. Some of these weapons are real or practicable; some are science fiction.

An electron particle beam weapon works by disrupting electric circuits and electronic devices in its targets. If any living animals or persons were to be caught by the electric discharge of an electron beam weapon, they would most likely be electrocuted. An electron beam weapon can also damage or melt its target by the electrical resistance heating of the target (because of Ohm's law).

Beam generation

A neutral particle beam weapon ionizes hydrogen
Hydrogen
Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

 gas by either stripping an electron off of each hydrogen atom, or by allowing each hydrogen atom to capture an extra electron. When hydrogen molecule gains electrons it forms anions; when hydrogen molecules lose electrons they form cations; when hydrogen atoms lose their electron they form proton
Proton
The proton is a subatomic particle with the symbol or and a positive electric charge of 1 elementary charge. One or more protons are present in the nucleus of each atom, along with neutrons. The number of protons in each atom is its atomic number....

s A particle beam weapon that accelerates anions uses a traveling wave type particle accelerator
Particle accelerator
A particle accelerator is a device that uses electromagnetic fields to propel charged particles to high speeds and to contain them in well-defined beams. An ordinary CRT television set is a simple form of accelerator. There are two basic types: electrostatic and oscillating field accelerators.In...

. In this kind of ion accelerator, the negative ions are released inside a cylindrical ion acceleration chamber. This chamber has an electrode with an alternating electric charge of up to 1,000,000,000 () volts inside it.

These stages happen:-
  1. While the charge on the electrode is positive, the ions are attracted to the negative charge on the electrode, and thus bunched around it.
  2. The alternating voltage switches the charge to negative on the accelerating electrode.
  3. The negative charge electrostatically repels the negative ions and accelerates them to near the velocity of light.
  4. The resulting high energy beam of anions passes through a chamber filled with low pressure gas.
  5. There, collisions with the gas strip the extra electrons from the anions, and thus make the particle beam neutral.
  6. The particle beam proceeds straight to its target, and damages it by running into it, and by disrupting the structure of the target with its kinetic energy
    Kinetic energy
    The kinetic energy of an object is the energy which it possesses due to its motion.It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes...

    .


Cyclotron particle accelerators, linear particle accelerator
Linear particle accelerator
A linear particle accelerator is a type of particle accelerator that greatly increases the velocity of charged subatomic particles or ions by subjecting the charged particles to a series of oscillating electric potentials along a linear beamline; this method of particle acceleration was invented...

s, and synchroton particle acclerators can accelerate positively charged hydrogen ions until their velocity approaches the speed of light
Speed of light
The speed of light in vacuum, usually denoted by c, is a physical constant important in many areas of physics. Its value is 299,792,458 metres per second, a figure that is exact since the length of the metre is defined from this constant and the international standard for time...

, and each individual ion has a kinetic energy range of 100 MeV
MEV
MeV and meV are multiples and submultiples of the electron volt unit referring to 1,000,000 eV and 0.001 eV, respectively.Mev or MEV may refer to:In entertainment:* Musica Elettronica Viva, an Italian musical group...

 to 1000 MeV or more. Then the resulting high energy protons can capture electrons from electron emitter electrodes, and be thus electrically neutralized. This creates an electrically neutral beam of high energy hydrogen atoms, that can proceed in a straight line at near the speed of light to smash into its target and damage it.

The pulsed particle beam emitted by such a weapon may contain 1 gigajoule of kinetic energy
Kinetic energy
The kinetic energy of an object is the energy which it possesses due to its motion.It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes...

 or more. The speed of a beam approaching that of light (300,000 km/sec) in combination with the energy created by the weapon would negate any realistic means of defending a target against the beam. Target hardening through shielding or materials selection would be impractical or ineffective , especially if the beam could be maintained at full power and precisely focused on the target.

Tesla

Nikola Tesla
Nikola Tesla
Nikola Tesla was a Serbian-American inventor, mechanical engineer, and electrical engineer...

 (1856 - 1943) was a noted inventor, scientist and electrical engineer. He invented Tesla coil
Tesla coil
A Tesla coil is a type of resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high voltage, low current, high frequency alternating current electricity. Tesla coils produce higher current than the other source of high voltage discharges, electrostatic machines...

s, alternating current
Alternating current
In alternating current the movement of electric charge periodically reverses direction. In direct current , the flow of electric charge is only in one direction....

 electric generators
Electrical generator
In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...

 and was a major early pioneer of radio
Radio
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

 technology. He was also noted for making some remarkable claims, among them that he had developed what he called a "teleforce
Teleforce
Teleforce was Nikola Tesla's charged particle beam projector, first mentioned publicly in the New York Sun and New York Times on July 11, 1934.-Introduction:...

" weapon The press called it a "peace ray" or death ray.

In total, the components and methods included :
  1. An apparatus for producing manifestations of energy in free air instead of in a high vacuum as in the past. This, according to Tesla in 1934, was accomplished.
  2. A mechanism for generating tremendous electrical force. This, according to Tesla, was also accomplished.
  3. A means of intensifying and amplifying the force developed by the second mechanism.
  4. A new method for producing a tremendous electrical repelling force. This would be the projector, or gun, of the invention.


In 1937, Tesla composed a treatise entitled "The Art of Projecting Concentrated Non-dispersive Energy through the Natural Media". This treatise is currently in the Nikola Tesla Museum
Nikola Tesla Museum
The Nikola Tesla Museum is located in the central area of Belgrade. It holds more than 160,000 original documents, over 2,000 books and journals, over 1,200 historical technical exhibits, over 1,500 photographs and photo plates of original, technical objects, instruments and apparatus, and over...

 archive in Belgrade
Belgrade
Belgrade is the capital and largest city of Serbia. It is located at the confluence of the Sava and Danube rivers, where the Pannonian Plain meets the Balkans. According to official results of Census 2011, the city has a population of 1,639,121. It is one of the 15 largest cities in Europe...

. It described an open ended vacuum tube with a gas jet seal that allowed particles to exit, a method of charging particles to millions of volts, and a method of creating and directing non-dispersive particle streams (through electrostatic repulsion).

Tesla worked on plans for a directed-energy weapon between the early 1900s until the time of his death. Records of his device indicate that it was based on a narrow stream of atomic clusters of liquid mercury
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...

 or tungsten
Tungsten
Tungsten , also known as wolfram , is a chemical element with the chemical symbol W and atomic number 74.A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as...

 accelerated via high voltage (by means akin to his magnifying transformer
Magnifying transmitter
The magnifying transmitter is an advanced version of Tesla coil transmitter. It is a high power harmonic oscillator that Nikola Tesla intended for the wireless transmission of electrical energy...

). Tesla gave the following description concerning the particle gun
Charged particle beam
A charged particle beam is a spatially localized group of electrically charged particles that have approximately the same velocity . The kinetic energies of the particles are typically measured in keV or MeV, much larger than the energies of particles at ambient temperature...

s operation:
[The nozzle would] "send concentrated beams of particles through the free air, of such tremendous energy that they will bring down a fleet of 10,000 enemy airplanes at a distance of 200 miles from a defending nation's border and will cause armies to drop dead in their tracks".

The weapon could be used against ground based infantry or for anti-aircraft purposes. Tesla tried to interest the US War Department
United States Department of Defense
The United States Department of Defense is the U.S...

 in the device. He also offered this invention to European countries. None of the governments purchased a contract to build the device.

Various theories persist regarding the nature of this device and the whereabouts of Tesla's complete schematics for it. Immediately after his death, his effects were confiscated and the room's safe opened. The FBI never found the schematics nor any prototype. The so-called "peace ray" constitutes a part of some conspiracy theories as a means of destruction.

Modern experiments

Several modern experimental particle beam weapons were tested at scientific laboratories such as the Los Alamos National Laboratory
Los Alamos National Laboratory
Los Alamos National Laboratory is a United States Department of Energy national laboratory, managed and operated by Los Alamos National Security , located in Los Alamos, New Mexico...

 in New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

 by both the United States and the USSR from the 1950s to the 1980s.

The U.S. Defense Strategic Defense Initiative Organization put into development the technology of a neutral particle beam for strategic defense applications. In mid 1989, it was to be part of the Beam Experiments Aboard a Rocket (BEAR) in New Mexico.

In Albuquerque, New Mexico, on Dec. 15, 2008, Sandia National Laboratories
Sandia National Laboratories
The Sandia National Laboratories, managed and operated by the Sandia Corporation , are two major United States Department of Energy research and development national laboratories....

 broke ground on the $40 million Ion Beam Laboratory at Kirtland Air Force Base
Kirtland Air Force Base
Kirtland Air Force Base is a United States Air Force base located in the southeast quadrant of the Albuquerque, New Mexico urban area, adjacent to the Albuquerque International Sunport. The base was named for the early Army aviator Col. Roy C. Kirtland...

. It will house six accelerators and is scheduled for occupancy in 2010.
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