Timeline for How can the waves interfere in X-ray diffraction?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Sep 13, 2022 at 20:26 | vote | accept | Ajaykrishnan R | ||
| Sep 13, 2022 at 20:05 | review | Close votes | |||
| Sep 13, 2022 at 20:26 | |||||
| Sep 13, 2022 at 19:46 | comment | added | hft | "i could choose a point such that both the reflected waves are in sync despite the initial phase difference. " No you can't because you don't get to meaningfully adjust the distance to the detector. That detector distance is simply a very large distance compared to the atomic spacing. As you see, nothing in the equation depends on the distance to the detector. | |
| Sep 13, 2022 at 19:42 | comment | added | Ajaykrishnan R | @hft okay but where exactly does that phase difference result in a constructive or destructive interference ? For example, i could choose a point such that both the reflected waves are in sync despite the initial phase difference. Similarly i can find where they cancel each other. I can find such points for every angle of incidence. But then what makes the Bragg angle where a peak is observed special ? And what is the "peak" really ? | |
| Sep 13, 2022 at 19:40 | answer | added | hft | timeline score: 2 | |
| Sep 13, 2022 at 19:34 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
edited body; edited tags; edited title; edited tags
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| Sep 13, 2022 at 19:34 | comment | added | hft | The directed lines represent waves (e.g., plane waves or spherical waves). The extent of the waves is larger than the extent of the lines. That is, they do not only exist right on top the lines, but rather those lines just indicate the direction of travel of the wave. The point is that one wave reflects off of one atom (or sheet of atoms) and another reflects of another atoms (or sheet of atoms) and those reflected waves have a phase difference related to the locations of the atoms. | |
| Sep 13, 2022 at 19:22 | history | asked | Ajaykrishnan R | CC BY-SA 4.0 |