 | Acta Crystallographica Section E Acta Crystallographica Section E CRYSTALLOGRAPHIC COMMUNICATIONS |
journal menu
![[Figure 2]](oi2029fig2mag.jpg)
|
|
Figure 2
(a) In order to set up the hands-on experiment, two parallel horizontal lines representing a set of {hkl} lattice planes must be drawn. The distance between these lines defines the lattice spacing dhkl. The two green spots at the ends of the line defining the lattice spacing mark the anchor points that the edges of the triangle ruler must cross to comply with the required condition for constructive interference. (b) Here a standard German triangular ruler (Geodreieck) has been adjusted to fit the lower left triangle of the geometric construction. Note that the green edges of the triangle cross the anchor points marked in Fig. 2 ![[link]](../../../../../../logos/arrows/e_arr.gif){kind=small} a. It is also important to note that the distance on the lower edge of the triangular ruler between the two arrows defines the half wavelength λ/2. Thus, by shortening or lengthening this distance along the lower edge, different wavelengths can be defined for the virtual X-ray diffraction experiment. Note added on manuscript revision: one reviewer suggested using a needle or pin inserted into the anchor points to maintain contact with these points when exploring changes in wavelength and diffraction angle. |
![[Figure 2]](oi2029fig2.jpg)
| CRYSTALLOGRAPHIC COMMUNICATIONS |
ISSN: 2056-9890
Open 
access
access
