12.1.16: Effects of Different X-ray Wavelengths
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- 18381
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All X-ray patterns seen in this chapter were obtained using a copper X-ray tube that produced Cu Kα radiation with wavelength 1.5418Å. Sometimes mineralogists use other kinds of tubes that produce a different X-ray wavelength. If so, the angles of diffraction will be different. The diffraction pattern will look the same but will be systematically shifted to higher or lower 2θ values. Nevertheless, when we calculate d-values using Bragg’s Law, the values come out the same no matter the X-ray tube and radiation used.