Abstract

The phenomenal growth of nuclear science during the past decade and a half has been replete with important consequences for all the natural sciences. Among other things, a new technique for the detection of trace impurities in materials by forming their artificially radio-active isotopes has become possible. This novel procedure, known as <i>activation analysis,</i> is foremost a method for the determination of minute quantities of foreign constituents by reason of the very great sensitivities attainable in the detection of radioactivity.

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