Wave Lengths of the Tungsten X-Ray Spectrum

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Excerpt from Wave Lengths of the Tungsten X-Ray Spectrum: A Dissertation Submitted to the Faculty of the Graduate College of the State University of Iowa in Partial Fulfillment of the Requirements for the Degree of Doctor of PhilosophyThe photographic method was chosen for this work in preference to an ionization chamber and electrometer because in the latter method the intensity of the re¿ected beam must be great enough to give a continuous effect on the electrometer while the photographic plate gives a summation of the intensity of the re¿ected beam over a time that may be made so very much longer that weak lines have an opportunity to appear.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.