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richyw

  • 3 years ago

Can someone help me with a simple bragg reflection question?

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  1. richyw
    • 3 years ago
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    X rays scattered from a crystal have a first-order diffraction peak at θ = 15°. At what angle will the second and third order peaks appear? I have already found that taking arcsin(2sin15) and arcsin(3sin15) get the correct answer. I just have no idea why!

  2. richyw
    • 3 years ago
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    the only formula my textbook gives is \[n \lambda=2dsin \theta \] It doesn't say what n is other that "an integer"

  3. richyw
    • 3 years ago
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    never mind, wikipedia explained it. super easy once I realized what n was.

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