Partial rejuvenation of Bayard-Alpert ionization gauge tubes

Siska, P.E.
April 1997
Review of Scientific Instruments;Apr97, Vol. 68 Issue 4, p1902
Academic Journal
Describes a procedure for the partial restoration of Bayard-Alpert gauge tubes that have been contaminated by a combination of mechanical and silicone diffusion pump oil vapors. Description of the method; Testing of the procedure on nine inoperable gauges.


Related Articles

  • Miniature, self-contained, Penning ionization gauge using a samarium–cobalt magnet. Vanderschmidt, G. F.; Candidus, Edward S. // Review of Scientific Instruments;Oct85, Vol. 56 Issue 10, p1966 

    A variant of the self-contained Penning gauge, utilizing an integral, internal, samarium–cobalt magnet offers advantages in simplicity of construction and small size. Using available commercial material, a field of 570 G between 2.54-cm-square pole pieces separated by 0.9 cm is readily...

  • Hot-cathode-ionization-gauge system with a self-compensating circuit for errors caused by an external-electron source. Saeki, Hiroshi; Magome, Tamotsu; Aoki, Tsuyoshi; Gotoh, Nobuaki; Momose, Takashi // Review of Scientific Instruments;Dec2004, Vol. 75 Issue 12, p5152 

    A hot-cathode-ionization-gauge system, consisting of a gauge head with a correcting electrode, an automated-pressure-compensating circuit, and a shield tube, succeeded in overcoming two kinds of erroneous pressure indications with hot-cathode-ionization gauges. Several tens of...

  • Carbon nanotube electron source based ionization vacuum gauge. Changkun Dong; Myneni, Ganapati R. // Applied Physics Letters;6/28/2004, Vol. 84 Issue 26, p5443 

    The results of fabrication and performance of an ionization vacuum gauge using a carbon nanotube electron source fire presented. The electron source was constructed with multiwall nanotubes, which were grown using thermal chemical vapor deposition. The electron emission of the source was stable...

  • Intra-cluster ionization and X-ray emissionW. Brunner: Applied Physics B 64, pp. 445–450 (1997). McPherson, A.; Schroeder, W.A.; Rhodes, C.K. // Applied Physics B: Lasers & Optics;1997, Vol. 65 Issue 4/5, p667 

    Comments on the article by W. Brunner about the collisional ionization mechanism leading to X-ray emission in laser-pumped atomic clusters. Irrelevance of the author's cluster model analysis to the experimental conditions; Possible coherent motion of an ionized multi-electron wavepacket.

  • Impact-ionization engineering improves APDs. Jones-Bey, Hassaun A. // Laser Focus World;Nov2002, Vol. 38 Issue 11, p101 

    Focuses on the improvement of avalanche photodiodes (APD) application through impact-ionization engineering. Development of approaches to avalanche theory; Determination of multiplication noise and gain-bandwidth product of an APD; Increase in gain-bandwidth products through ADP material...

  • ionization.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1229 

    A definition of the term "ionization" which refers to the process of adding or subtracting an electron from an atom and the most common cause of radiobiological damage is presented.

  • ionize.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1229 

    A definition of the term "ionize" which means to separate into ions is presented.

  • Novel technique for the extraction of ionization profiles from spatial density measurements. Deegan, C. M.; Markham, C. E.; Turner, M.; Vender, D. // Review of Scientific Instruments;Dec2001, Vol. 72 Issue 12, p4362 

    A method has been devised to extract the two-dimensional ionization profiles from spatially resolved ion density measurements made in a capacitively coupled argon rf plasma. This technique is valid if the production process is ionization and the loss process is ambipolar diffusion. As this...

  • Interferometric investigation of femtosecond laser-heated expanded states. Widmann, K.; Guethlein, G.; Foord, M. E.; Cauble, R. C.; Patterson, F. G.; Price, D. F.; Rogers, F. J.; Springer, P. T.; Stewart, R. E.; Ng, A.; Ao, T.; Forsman, A. // Physics of Plasmas;Sep2001, Vol. 8 Issue 9 

    Simultaneous temporally and spatially resolved measurements of the phase change and reflectivity of S- and P-polarized femtosecond laser probes are obtained from hot expanded states produced by femtosecond laser heating of a solid aluminum target. The combined set of data provides an integral...

  • Metabolite signal identification in accurate mass metabolomics data with MZedDB, an interactive m/z annotation tool utilising predicted ionisation behaviour 'rules'.  // BMC Bioinformatics;2009, Vol. 10, p227 

    Background: Metabolomics experiments using Mass Spectrometry (MS) technology measure the mass to charge ratio (m/z) and intensity of ionised molecules in crude extracts of complex biological samples to generate high dimensional metabolite 'fingerprint' or metabolite 'profile' data. High...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics