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Figure 2
Focusing of (a) solar light with a diameter of 20 mm and (b) Cu Kα X-rays by the present crystal. Solar light was focused onto a spot at f = 300 mm, showing that the crystal surface was hemispherical with a radius of 600 mm. Cu Kα radiation was diffracted by the crystal at C and focused at L2.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 41| Part 4| June 2008| Pages 798-799
doi:10.1107/S0021889808016282
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