enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Focused ion beam - Wikipedia

    en.wikipedia.org/wiki/Focused_ion_beam

    Most widespread instruments are using liquid metal ion sources (LMIS), especially gallium ion sources. Ion sources based on elemental gold and iridium are also available. In a gallium LMIS, gallium metal is placed in contact with a tungsten needle, and heated gallium wets the tungsten and flows to the tip of the needle, where the opposing forces of surface tension and electric field form the ...

  3. Ion beam - Wikipedia

    en.wikipedia.org/wiki/Ion_beam

    A small ion beam rocket being tested by NASA. An ion beam is a beam of ions, a type of charged particle beam. Ion beams have many uses in electronics manufacturing (principally ion implantation) and other industries. There are many ion beam sources, some derived from the mercury vapor thrusters developed by NASA in the 1960s. The most widely ...

  4. Main Magnetic Focus Ion Source - Wikipedia

    en.wikipedia.org/wiki/Main_Magnetic_Focus_Ion_Source

    Photo: The MaMFIS operating at electron beam energy of up to 4 keV and electron current density of about 20 kA/cm 2. Main Magnetic Focus Ion Source (MaMFIS) is a compact ion source with extremely high electron current density. The device is designed for production of ions of arbitrary elements in any charge states, in particular, of highly ...

  5. Ion beam analysis - Wikipedia

    en.wikipedia.org/wiki/Ion_beam_analysis

    Ion beam analysis (IBA) is an important family of modern analytical techniques involving the use of MeV ion beams to probe the composition and obtain elemental depth profiles in the near-surface layer of solids. IBA is not restricted to MeV energy ranges.

  6. Ion beam mixing - Wikipedia

    en.wikipedia.org/wiki/Ion_Beam_Mixing

    Ion beam mixing can be further enhanced by heat spike effects [4] Ion mixing (IM) is essentially similar in result to interdiffusion, hence most models of ion mixing involve an effective diffusion coefficient that is used to characterize thickness of the reacted layer as a function of ion beam implantation over a period of time.

  7. Ion source - Wikipedia

    en.wikipedia.org/wiki/Ion_source

    Ion beam deposition system with mass separator. Gas flows through the ion source between the anode and the cathode. A positive voltage is applied to the anode. This voltage, combined with the high magnetic field between the tips of the internal and external cathodes allow a plasma to start.

  8. Ion beam lithography - Wikipedia

    en.wikipedia.org/wiki/Ion_beam_lithography

    Ion-beam lithography, or ion-projection lithography, is similar to Electron beam lithography, but uses much heavier charged particles, ions. In addition to diffraction being negligible, ions move in straighter paths than electrons do both through vacuum and through matter, so there seems be a potential for very high resolution.

  9. Anti-intrusion bar - Wikipedia

    en.wikipedia.org/wiki/Anti-intrusion_bar

    An anti-intrusion bar or beam is a passive safety device, installed in most cars and other ground vehicles, which must protect passengers from side impacts. [1] Side impacts are particularly dangerous for two reasons: a) the location of impact is very close to the passenger, who can be immediately reached by the impacting vehicle; b) in many side-impact accidents, the impacting vehicle may be ...