Difference between revisions of "Bragg diffraction"
From Camilo's web
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The results of the measurement are shown in Figure 1 (above). We can identify clearly six peaks at 12$^{\circ}$, 20$^{\circ}$, 24$^{\circ}$, 31$^{\circ}$, 47$^{\circ}$ and 59$^{\circ}$. Considering that the wavelength of the source used to measure the diffraction is $\lambda=2.85\,\mathrm{cm}$, we obtain the following values for the interplane distance $d$: | The results of the measurement are shown in Figure 1 (above). We can identify clearly six peaks at 12$^{\circ}$, 20$^{\circ}$, 24$^{\circ}$, 31$^{\circ}$, 47$^{\circ}$ and 59$^{\circ}$. Considering that the wavelength of the source used to measure the diffraction is $\lambda=2.85\,\mathrm{cm}$, we obtain the following values for the interplane distance $d$: | ||
{| class="wikitable" | <center> | ||
{| class="wikitable" style="text-align:center" | |||
|- | |- | ||
! Peak position ($^{\circ}$) !! Diffraction order ($n$) !! $d$ | ! Peak position ($^{\circ}$) !! Diffraction order ($n$) !! $d$ | ||
|- | |- | ||
| 12 || 1 || 6.12 $\pm$ 0.25 | | 12 || 1 || (6.12 $\pm$ 0.25) | ||
|- | |- | ||
| 20 || 1 || 3.77 $\pm$ 0.09 | | 20 || 1 || (3.77 $\pm$ 0.09) | ||
|- | |- | ||
| 24 || 1 || 3.17 $\pm$ 0.06 | | 24 || 1 || (3.17 $\pm$ 0.06) | ||
|- | |- | ||
| 31 || 1 || 2.50 $\pm$ 0.03 | | 31 || 1 || (2.50 $\pm$ 0.03) | ||
|- | |- | ||
| 47 || 2 || 3.53 $\pm$ 0.03 | | 47 || 2 || (3.53 $\pm$ 0.03) | ||
|- | |- | ||
| 59 || 2 || 3.01 $\pm$ 0.02 | | 59 || 2 || (3.01 $\pm$ 0.02) | ||
|} | |} | ||
</center> | |||
== Useful links == | == Useful links == | ||
Revision as of 18:31, 4 November 2020
Introduction
Procedure
Results & analysis
The results of the measurement are shown in Figure 1 (above). We can identify clearly six peaks at 12$^{\circ}$, 20$^{\circ}$, 24$^{\circ}$, 31$^{\circ}$, 47$^{\circ}$ and 59$^{\circ}$. Considering that the wavelength of the source used to measure the diffraction is $\lambda=2.85\,\mathrm{cm}$, we obtain the following values for the interplane distance $d$:
| Peak position ($^{\circ}$) | Diffraction order ($n$) | $d$ |
|---|---|---|
| 12 | 1 | (6.12 $\pm$ 0.25) |
| 20 | 1 | (3.77 $\pm$ 0.09) |
| 24 | 1 | (3.17 $\pm$ 0.06) |
| 31 | 1 | (2.50 $\pm$ 0.03) |
| 47 | 2 | (3.53 $\pm$ 0.03) |
| 59 | 2 | (3.01 $\pm$ 0.02) |