electro-, electr-, electri-
(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)
Electronics in our lives consists of numerous tools
Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.
2. A deflection of a beam of electrons, at regular intervals, across a crt screen (display that is electronically created on the surface of the large end of a cathode-ray tube), according to a definite pattern.
The beam is moved in a point-to-point manner over the surface of the specimen and these electrons are deflected collected, accelerated, and directed against a scintillator.
The large number of photons that are created are converted into an electric signal which, in turn, modulates the beam scanning the surface of the specimen.
2. The arrangement of electrons at various distances from the nucleus of an atom, according to the energy that they have.
Those with the least energy are in the shell closest to the nucleus, traditionally called the K shell, which can hold no more than two electrons.
The Q shell, farthest from the nucleus, can hold 98 electrons, but it is never completely filled.
2. The study of the energy spectra of photo-electrons or Auger electrons that are emitted from a substance upon bombardment by electromagnetic radiation, electrons, or ions.
It is used to investigate atomic, molecular, or solid-state structure, and in chemical analysis.
2. A visual display, photograph, or graphical plot of the intensity of electrons emitted from a substance bombarded by X-rays or other radiation as a function of the kinetic energy of the electrons.
2. The intrinsic half-integer angular momentum of an electron.
3. That property of an electron that gives rise to its angular momentum around an axis within the electron.
Spin is one of the permanent and basic properties of the electron.
2. At any point in an electron stream, the time average of the potential difference between that point and the electron-emitting surface.
This includes the ratio of the average stream current through the electrode to the stream current approaching the electrode.
2. A circular electron accelerator in which the frequency of the accelerating system is constant, the strength of the magnetic guide field increases, and the electrons move in orbits of nearly constant radius.
3. A synchrotron (an apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets) designed to accelerate electrons.
The electron beam is allowed to strike an internal target, producing high-energy gamma rays which are used outside the machine.