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Tracks to Innovation - Nuclear Tracks in Science and Technology (Paperback, Softcover reprint of the original 1st ed. 1998)
Loot Price: R1,443
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Tracks to Innovation - Nuclear Tracks in Science and Technology (Paperback, Softcover reprint of the original 1st ed. 1998)
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A serendipitous discovery in nuclear physics has led to a useful
tool in materials science. In the late 1950s, scientists at General
Electric (among them the author) discovered that when mica is
exposed to energetic charged particles (such as are emitted in
radioactive decay or occur in cosmic rays), the particles leave
latent tracks in the material. When such a material is chemically
etched, the tracks are revealed as narrow, deep pits, whose size
and shape is determined both by the particle that made the track
and by the technique used in etching. It soon turned out that
glass, plastics, or certain other materials can be similarly
treated. This discovery paved the way not only for a new and useful
method of measuring radioactivity, it has also found widespread
applications in other fields, ranging from geology and materials
science to archaeology and art history. Thus, for example,
naturally produced tracks can be used to estimate the age of a
mineral deposit or an archaeological material; and deliberately
produced tracks can be used to make extremely fine filters.
Fleischer presents the history of these developments and discusses
the applications of the technique in a way that will be interesting
to anyone with a minimal knowledge of physics.
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