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  2. Scanning helium microscopy - Wikipedia

    en.wikipedia.org/wiki/Scanning_helium_microscopy

    The scanning helium microscope (SHeM) is a form of microscopy that uses low-energy (5–100 meV) neutral helium atoms to image the surface of a sample without any damage to the sample caused by the imaging process. Since helium is inert and neutral, it can be used to study delicate and insulating surfaces.

  3. Scanning helium ion microscope - Wikipedia

    en.wikipedia.org/wiki/Scanning_Helium_Ion_Microscope

    A scanning helium ion microscope (SHIM, HeIM or HIM) is an imaging technology based on a scanning helium ion beam. [2] Similar to other focused ion beam techniques, it allows to combine milling and cutting of samples with their observation at sub-nanometer resolution.

  4. Scanning helium microscope - Wikipedia

    en.wikipedia.org/wiki/Scanning_helium_microscope

    Scanning helium microscope may refer to: . Scanning helium microscopy; Scanning Helium Ion Microscope; Atomic nanoscope, which was proposed and discussed in the literature, but is not yet competitive with optical microscope, electron microscope, Scanning Helium Ion Microscope and various scanning probe microscopes

  5. Scanning tunneling microscope - Wikipedia

    en.wikipedia.org/wiki/Scanning_tunneling_microscope

    The main components of a scanning tunneling microscope are the scanning tip, piezoelectrically controlled height (z axis) and lateral (x and y axes) scanner, and coarse sample-to-tip approach mechanism. The microscope is controlled by dedicated electronics and a computer. The system is supported on a vibration isolation system. [5]

  6. Focused ion beam - Wikipedia

    en.wikipedia.org/wiki/Focused_ion_beam

    As helium ions can be focused into a small probe size and provide a much smaller sample interaction than high energy (>1 kV) electrons in the SEM, the He ion microscope can generate equal or higher resolution images with good material contrast and a higher depth of focus. Commercial instruments are capable of sub 1 nm resolution. [21] [22]

  7. Scanning SQUID microscopy - Wikipedia

    en.wikipedia.org/wiki/Scanning_SQUID_microscopy

    A Scanning SQUID Microscope is a sensitive near-field imaging system for the measurement of weak magnetic fields by moving a Superconducting Quantum Interference Device across an area. The microscope can map out buried current-carrying wires by measuring the magnetic fields produced by the currents, or can be used to image fields produced by ...

  8. Atom probe - Wikipedia

    en.wikipedia.org/wiki/Atom_probe

    In field ion microscopy, the tip is cooled by a cryogen and its polarity is reversed. When an imaging gas (usually hydrogen or helium) is introduced at low pressures (< 0.1 Pascal) gas ions in the high electric field at the tip apex are field ionized and produce a projected image of protruding atoms at the tip apex. The image resolution is ...

  9. US FDA identifies recall of Philips medical imaging devices ...

    www.aol.com/news/us-fda-identifies-recall...

    Philips was recalling some models of the Panorama 1.0T HFO device in the U.S. due to risk of explosion during a "quench procedure" caused by excessive buildup of helium gas. During the procedure ...

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