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By Robert L. Fleischer
A serendipitous discovery in nuclear physics has ended in a useful gizmo in fabrics technology. within the past due Fifties, scientists at normal electrical (among them the writer) chanced on that once mica is uncovered to lively charged debris (such as are emitted in radioactive decay or ensue in cosmic rays), the debris go away latent tracks within the fabric. while any such fabric is chemically etched, the tracks are printed as slender, deep pits, whose dimension and form is decided either by way of the particle that made the tune and via the strategy utilized in etching. It quickly grew to become out that cup, plastics, or yes different fabrics should be equally handled. This discovery cleared the path not just for a brand new and worthwhile approach to measuring radioactivity, it has additionally came upon frequent functions in different fields, starting from geology and fabrics technology to archaeology and paintings background. therefore, for instance, certainly produced tracks can be utilized to estimate the age of a mineral deposit or an archaeological fabric; and intentionally produced tracks can be utilized to make tremendous effective filters. Fleischer offers the heritage of those advancements and discusses the functions of the procedure in a manner that might be attention-grabbing to somebody with a minimum wisdom of physics.
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Extra resources for Tracks to Innovation: Nuclear Tracks in Science and Technology
Sample text
In this case, however, the startlingly rapid transition from holes etched in the laboratory, to pilot plant, to commercial reality was exceptional not only in its speed, but in its closely matching the managerial strategy under which it was spawned! Our segment of the Research Laboratory was managed in the years leading up to 1960 by an impressive, controversial, and forceful character, John Herbert Hollomon, who later became president of the University of Oklahoma. Herb produced strong reactions from those around him-admiration and enthusiasm from his associates and those for whom he was an advocate, and resentment among rival managers.
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Track etching is the established longterm method that is used commercially. :. " II . DIFFUSION". tCR1'1/ .. •".. A 'CI