English: "Fresh" (latent or unetched) californium-252 fission tracks[1] in a chromite (FeCr2O4) grain from the Allende meteorite, showing up in a weak-beam darkfield TEM image which lights up the strain-fields around the 40Å-diameter track-damage cores. This work confirmed chromite's ability to record nuclear particle tracks in spite of its relatively low resistivity.
↑P. Fraundorf (1978) "The detection of latent nuclear particle tracks in some common minerals with conventional TEM", Electron Microscopy1978 Volume 1 - Physics: Papers presented at the Ninth International Congress on Electron Microscopy, (Microscopical Society of Canada, University of Toronto), pages 480-481.
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