#particle_accelerator__accelerator__atom_smasher  a scientific instrument that increases the kinetic energy of charged particles
  supertype:  scientific_instrument  an instrument used by scientists
  part:  storage_ring
  subtype:  betatron__induction_accelerator__inductionaccelerator  accelerates a continuous beam of electrons to high speeds by means of the electric field produced by changing magnetic flux
  subtype:  charge-exchange_accelerator  an accelerator in which high-energy ions escape from plasma following charge exchange
  subtype:  Cockcroft_and_Walton_accelerator__Cockcroft-Walton_accelerator__Cockcroft_and_Walton_voltage_multiplier__Cockcroft-Walton_voltage_multiplier  a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube
  subtype:  collider  an accelerator in which two beams of particles are forced to collide head on
     subtype:  electron_accelerator  collider that consists of an accelerator that collides electrons and positrons
     subtype:  proton_accelerator  a collider that collides beams of protons and antiprotons
     subtype:  superconducting_supercollider__superconductingsupercollider  a collider that operates at very low temperatures
  subtype:  cyclotron  an accelerator that imparts energies of several million electron-volts to rapidly moving particles
     subtype:  bevatron  a cyclotron that accelerates protons up to several billion electron volts
     subtype:  synchrocyclotron  cyclotron that achieves relativistic velocities by modulating the frequency of the accelerating electric field
     subtype:  synchrotron  cyclotron in which the electric field is maintained at a constant frequency
        subtype:  cosmotron  a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons
  subtype:  linear_accelerator__linac  ions are accelerated along a linear path by voltage differences on electrodes along the path
     subtype:  microwave_linear_accelerator  linear accelerator that uses microwaves

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