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Figure 2
Optical micrographs of the radiation-damage disc and the mesa lying above it. (a) Reflected-light interferogram contouring the mesa on the (110) surface, with a transmitted-light image superimposed showing the disc of blackening. The field width is 1.12 mm. The lower right-hand corner of the field just touches the edge of the (110) specimen surface. The darkened corner of the image results from diversion of transmitted light by the inclined strip of natural surface connecting the polished (110) and (1¯1¯0) surfaces. (b) Reflected-light interferogram only. The effective wavelength is 546 nm.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 32| Part 6| December 1999| Pages 1119-1126
doi:10.1107/S0021889899010924
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