Natural and laboratory a - particle irradiation of diamond
نویسنده
چکیده
TO produce a lattice expansion readily detectable by conventional X-ray photographic means in c~-irradiated diamond, a dose of order Io 18 c~.cm -2 is required. Such a dose could be produced by pitchblende in ~2 • Ios yr. and a previously reported lattice expansion in a natural diamond could therefore have occurred by long-term contact with a radioactive material, c~-particle doses greater than ~to 14 cm -2 produce observable green colouration on the surface of an initially colourless diamond.
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