Should your next UHV gauge run hot or cold?

Comello, Vic
November 1997
R&D Magazine;Nov97, Vol. 39 Issue 12, p65
Trade Publication
Presents information on the ultrahigh vacuum hot-cathode and cold-cathode gauges. Indepth information on both gauges; What are the potential problems of the gauges; What are the advantages of the cold-cathode gauges.


Related Articles

  • Sweden's Uppsala University and IBM jointly develop a...  // Physics Today;Jan97, Vol. 50 Issue 1, p7 

    Reports that Sweden's Uppsala University, along with IBM, have developed a rotary ultrahigh vacuum system for advanced corelevel spectroscopy. Benefits of the rotary system; Explanation offered by Professor Joachim Stohr, IBM Almaden Research Center; Design of the system by Jan-Olof Forsell, and...

  • How well can you manipulate your vacuum samples. Studt, Tim // R&D Magazine;June97, Vol. 39 Issue 7, p75 

    Looks at the problems faced in the manipulation of samples in ultrahigh vacuum (UHV) environments. Need for positioning systems with accuracy; Causes of various problems; Use of the micrometer. INSETS: Defining the problem.;A compendium of positioning system error sources.;More info..

  • Solid state interdiffusions in epitaxial Fe/GaAs(001) heterostructures during ultrahigh vacuum... Lepine, B.; Abadou, S.; Guivarc'h, A.; Jézéquel, G.; Députier, S.; Gueárin, R.; Filipe, A.; Schuhl, A.; Abel, F.; Cohen, C.; Rocher, A.; Crestou, J. // Journal of Applied Physics;3/15/1998, Vol. 83 Issue 6, p3077 

    Presents a study which examined ultrahigh vacuum (UHV) of the solid state interdiffusions in epitaxial Fe/GaAs contacts. Method used to prepare the Fe/GaAs samples; Samples of characterized ex situ set by complementary methods; Observation of the formation of an interfacial reacted layer...

  • Adapting an electrostatic voltmeter for ultrahigh-vacuum operation. Loubriel, G. M. // Review of Scientific Instruments;Apr1985, Vol. 56 Issue 4, p623 

    A modification of a commercial electrostatic voltmeter which operates on the Kelvin–Zisman principle is described which permits operation inside a vacuum system at pressures below 5.0×10-8 Torr. This allows for in-vacuum electrostatic measurements of voltages of up to 5 kV.

  • High-speed motor for use in an ultrahigh-vacuum environment. Engel, Thomas; Braid, Donald // Review of Scientific Instruments;Aug1985, Vol. 56 Issue 8, p1668 

    Modification of a commerical motor to drive a chopper blade in UHV is described. The motor has performed satisfactorally at a frequency of 200 Hz over prolonged periods. The observed pressure rise which is due primarily to outgassing of the bearings is less than 1×10-9 Torr.

  • Surface-limited release of deuterium from iron and the effect of surface oxygen. Wampler, W. R. // Applied Physics Letters;2/10/1986, Vol. 48 Issue 6, p405 

    The surface-limited release of deuterium from solution in polycrystalline iron was measured in ultrahigh vacuum using nuclear reaction analysis and ion implantation with surface characterization by Auger electron spectroscopy. For a bare iron surface the magnitude and temperature dependence of...

  • Layer-dependent laser sputtering of BaF2 (111). Reif, J.; Fallgren, H.; Nielsen, H. B.; Matthias, E. // Applied Physics Letters;10/13/1986, Vol. 49 Issue 15, p930 

    Laser-induced sputtering from the (111) surface of BaF2 was investigated under ultrahigh vacuum conditions, applying fluences well below the macroscopic damage threshold. Measurement of the wavelength-dependent desorption of Ba+ indicates that Ba+ is emitted from two chemically different...

  • Three-axes sample manipulator for surface-science experiments in ultrahigh vacuum. Dai, Y.; Li, H.; Jona, F. // Review of Scientific Instruments;Jun90, Vol. 61 Issue 6, p1724 

    Additions to commercially available manipulators are described which allow independent rotations of a sample in ultrahigh vacuum around three mutually perpendicular axes, as well as in situ adjustments of the sample orientation with respect to any of the three rotation axes. The additions allow...

  • Ultrahigh-vacuum chamber equipped with a reaction cell for studying liquid-phase catalytic reactions. Gardin, Denis E.; Somorjai, Gabor A. // Review of Scientific Instruments;May93, Vol. 64 Issue 5, p1304 

    We describe the construction and operation of a liquid-phase reaction cell designed in our laboratory that is attached to an ultrahigh-vacuum (UHV) chamber equipped with the traditional surface science techniques for structure and composition analysis. The sample surface can be prepared and...


Other Topics