What is the 'first order' diffraction peak?

AI Thread Summary
The 'first order' diffraction peak refers to the initial diffraction peak observed in a diffraction pattern. Its meaning can vary based on context; it may indicate the first peak in a general sense or refer to a value derived from a 'first order' approximation. Understanding the distinction is crucial for accurate interpretation in diffraction studies. The discussion emphasizes the importance of context when defining the term. Overall, clarity in terminology is essential for effective communication in diffraction analysis.
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Could someone explain what the 'first order' diffraction peak is?
 
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It depends on the context. Generally it simply means the first diffraction peak, from the http://en.wikipedia.org/wiki/Diffraction_formalism" .

If its the 'diffraction peak, to first order' that can mean something different. That could be the value of the first diffraction peak, according to a 'first order' approximation.
 
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zhermes said:
It depends on the context. Generally it simply means the first diffraction peak, from the http://en.wikipedia.org/wiki/Diffraction_formalism" .

If its the 'diffraction peak, to first order' that can mean something different. That could be the value of the first diffraction peak, according to a 'first order' approximation.

Thanks for your help!:smile: I also liked the article you referred to.
 
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