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Natural and laboratory α-particle irradiation of diamond

Published online by Cambridge University Press:  05 July 2018

E. R. Vance
Affiliation:
Chemistry Department, University College, London
H. J. Milledge
Affiliation:
Chemistry Department, University College, London

Summary

To produce a lattice expansion readily detectable by conventional X-ray photographic means in α-irradiated diamond, a dose of order 1018α.cm−2 is required. Such a dose could be produced by pitchblende in ∼2 × 108 yr. and a previously reported lattice expansion in a natural diamond could therefore have occurred by long-term contact with a radioactive material. α-particle doses greater than ∼1014 cm−2 produce observable green colouration on the surface of an initially colourless diamond.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1972

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Footnotes

1

Present address: Dept. of Solid State Physics, Australian National University, Canberra, A.C.T. 2600, Australia.

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