-tron, -tronic, -tronics +
(Greek: a suffix referring to a device, tool, or instrument; more generally, used in the names of any kind of chamber or apparatus used in experiments)
A possible allusion to the Greek instrumental suffix, as in árotron, "plow" as spelled in the U.S. or "plough", as spelled by the British; from the Greek stem aroun, "to plow".
The suffix -tron is the result of the combining form extracted from electron, used with nouns or combining forms, principally in the names of electron tubes (ignitron; klystron; magnetron) and of devices for accelerating subatomic particles (cosmotron; cyclotron); also, more generally, in the names of any kind of chamber or apparatus used in experiments (biotron).
2. The use of intense beams of electrons to implode small pellets of deuterium and tritium so that they reach the temperature and density required for initiating a fusion reaction.
2. A source of multiple charged heavy ions which uses an intense electron beam with energies of five to ten kiloelectronvolts to successively ionize injected gas.
2. The practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film called the resist, exposing the resist, and of selectively removing either exposed or non-exposed regions of the resist called, "developing".
3. Lithography in which the radiation-sensitive film or resist is placed in the vacuum chamber of a scanning-beam electron microscope and exposed by an electron beam under digital computer control.
After exposure, the film is removed from the vacuum chamber for conventional development and other production processes.
2. An instrument which measures the intensity and direction of magnetic forces by the immersion of an electron beam into the magnetic field.
2. A parametric amplifier in which energy is pumped from an electrostatic field into a beam of electrons traveling down the length of the tube, and electron couplers impress the input signal at one end of the tube and translate spiraling electron motion into electric output at the other end.
2. The use of an electron beam to produce excitation for population inversion and lasing action in a semiconductor laser.
2. A recorder in which a moving electron beam is used to record signals or data on to photographic or thermoplastic film in a vacuum chamber.
3. A device that transfers computer data onto microfilm using an electron beam.
2. An electron tube whose performance depends on the formation and control of one or more electron beams.
It is characterized by a circuitry that feeds a portion of the generated energy back into the system to sustain its operation, and by an electron stream that is coupled between the screen and the plate to reduce the effects of the load.2. An oscillator employing a multigrid tube in which the cathode and two grids operate as a conventional oscillator and the electron couples the plate-circuit load to the oscillator.
The anode-circuit load is coupled to the oscillator through the electron stream.
2. Characterized by being relatively opaque to the passage of the electron beam in an electron microscope.
Such an object will appear as a dark area on the viewing screen and photographic prints.
The map is calculated using a Fourier synthesis, a summation of waves of known phase, frequency, and amplitude.2. A three-dimensional representation of the electron density of a molecular structure based on x-ray diffraction data.
2. The diffraction of electrons when they pass through crystalline matter, useful in the study of the structure of materials.
3. An examination of solid surfaces by observing the diffraction of a stream of electrons on the surfaces.
A diffraction is the bending or spreading out of waves; such as, of sound or light, as they pass around the edge of an obstacle or through a narrow opening as when light passes sharp edges or goes through narrow slits and the rays are deflected and produce fringes of light and dark bands.
2. A process by which materials that conduct electricity can be removed from a metal by an electric spark.
It is used to form holes with different shapes in materials that have poor machine operations.
2. A curve or line indicating the electron distribution in the different available energy levels of a solid substance.
The study of the distribution of energy that is lost by scattered electrons when a substance is bombarded with monochromatic electrons.2. A technique for studying atoms, solids, or molecules in which a substance is bombarded with monochromatic electrons, and the energies of scattered electrons are measured to determine the distribution of energy loss.