Testing Methods for Vacuum Tube Materials



X-ray Spectrography. The diffraction of a monochromatic X-ray beam passing through a monocrystal or polycrystalline specimen produces interference phenomena similar to those observed with gratings and ordinary light. The reflection on a lattice plane follows known optical laws; as the diffracted beams, reflected from successive planes, are superposed, these beams produce maximum reinforcement only if the path difference is a whole number n of wave lengths λ (Fig. 2/1).


Vacuum System Leak Detector Vacuum Gauge Ionization Gauge Negative Glow 
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References on Testing Methods for Vacuum Tube Materials General


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Copyright information

© Springer-Verlag OHG., Berlin Göttingen/Heidelberg 1959

Authors and Affiliations

  1. 1.Technische Hochschule MünchenGermany
  2. 2.Dept. El. EngineeringPrinceton UniversityUSA

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