Concave diffraction grating
- Made:
- 1950-1974 (estimated)
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Science Museum Group
© The Board of Trustees of the Science Museum
Concave diffraction grating, area 30 x 10 mm, mounted on glass, by Siegbahn, uncoated and intended for soft x-ray work, radius on metre, grating blazed about ½º, complete with a graph of the groove profile.
