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# X-Ray單晶繞射,單晶繞射儀原理簡述

我到現在只找到有關X-Ray單晶繞射的原理之一是布拉格繞射

有人可以告訴我它實際運作用到的原理嗎?

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- Anonymous2 decades agoFavorite Answer
Bragg reflection which occur in the scattering of x rays from the atom planes of a crystal. It is obeying the 'Bragg relation' derived in the caption to that: nλ = 2d sin φ.for the conditions, the effective interplanar spacing d can be shown by x-ray scattering from the same crystal to be 0.91A^°. Since θ =50°, it follows that φ =90°- 50°/2 = 65°. The wavelength calculated from above equation, assuming n = 1, is λ = 1.65 A^°.Above is belonged to 'Quantum Physics of Atoms, Moleculaes, Solids, Nuclei, and Particles', the authors are Robert Eisberg and Resnick.

Source(s): book

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