Abstract
X-RAY spectroscopy has already invaded the domain of chemical analysis and is no doubt destined to play an ever-increasing part in this field. It is to meet such a situation that Dr. Giinther has compiled this handy volume of tables. He has departed from the conventional method of classifying the lines under elements and has tabulated them in order of increasing wave-length. Such an arrangement, while suited for the special purpose for which the tables are intended, may not be very popular among physicists, who will probably prefer the more usual method; their needs have, however, already been catered for in various publications. In addition to the wave-lengths and their identification, this table gives, for the more important lines, the reflecting angles for the crystals commonly used with the spectrometer. The actual values given are largely based on the measurements of Siegbahn and his school, but in the K series of the elements of higher atomic weight it is surprising to find that the wave-lengths given are not those of the latest and most accurate determinations, and differ in some cases considerably from those given by Siegbahn and de Broglie. This divergence appears to be confined to this set of lines. With this exception, the table has been very carefully constructed and is very complete. In addition, Dr. Gunther gives in the introduction a brief description of the characteristics of X-ray spectra, and concludes with a series of tables on absorption coefficients, critical exciting voltages, and the like. In following the example of Siegbahn and including these tables, the author has materially increased the value of the book. The printing and general arrangement are excellent, and the volume should prove a useful reference book to all engaged in X-ray spectroscopy.
Tabellen zur Röntgenspektralanalyse.
Paul
Günther
Von. Pp. iv + 61. (Berlin: Julius Springer, 1924.) 4.80 gold marks.
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Tabellen zur Röntgenspektralanalyse . Nature 115, 565 (1925). https://doi.org/10.1038/115565a0
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DOI: https://doi.org/10.1038/115565a0
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