X-ray Detectors

  • A. R. Lang
Part of the Nato Advanced Study Institutes Series book series (NSSB, volume 63)


Finding the diffracted beam and adjusting the crystal are the standard preliminaries before taking a topograph. A convenient X-ray detector and associated circuitry are a great help, if not essential. We will commence by reviewing X-ray photon detectors, and will outline the type of detector and counting circuit combination that satisfies the topographer’s needs in the simplest way. In our discussion of photographic recording in Sectión 12.2 we will deal most fully with the Ilford L4 nuclear emulsion which has served X-ray topography well for over two decades, but we shall also consider recording means having resolving powers both lower and higher than this nuclear emulsion. In addition, we will offer practical advice on the photomicrography of topography. Next, in Section 12.3 we will discuss electronic recording methods which make ‘instant topography’ possible. In all attempts at quantitative discussion, we shall not hesitate to use approximations and rounding-off of numbers in order to simplify the presentation.


Scintillation Counter Nuclear Emulsion Photon Noise Instrumental Resolution Geiger Counter 
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© Springer Science+Business Media New York 1980

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  • A. R. Lang

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