Tests of a Balanced Thermocouple and Filter Radiometer as a Standard Ultra-Violet Dosage Intensity Meter (Classic Reprint)

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Excerpt from Tests of a Balanced Thermocouple and Filter Radiometer as a Standard Ultra-Violet Dosage Intensity MeterSimilarly the emission line of mercury at 297 my is taken as a standard for erythemal and radiometric comparisons (11) because it is close to the maximum of erythemic susceptibility, and (6) because it is easily obtained as a source that is readily evaluated ln absolute units by direct comparison with a standard of radiation of established constancy. In these comparisons the exit slit acts as the source and no consideration of absorption ln the spectroradiometer or change in intensity with aging of the lamp 1s necessary.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.