 | Acta Crystallographica Section A Acta Crystallographica Section A FOUNDATIONS AND ADVANCES |
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![[Figure 12]](sc5016fig12mag.jpg)
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Figure 12
A geometrical construction illustrating the reciprocal-lattice region accessible for a crystal enclosed in the DAC. Two windows of the DAC and its axis (dash-and-dot line) are superimposed with four reciprocal-lattice Ewald spheres corresponding to four limiting positions of beams entering the DAC along four window edges (along the upper-left edge: purple circle; along bottom-left edge: green; along upper-right edge: red; and along bottom-right edge: blue; the centres of the circles are marked with rectangles in the corresponding colours representing the crystal positions). The yellow area marks the accessible area of the reciprocal lattice – the accessible region in three dimensions is a torus obtained by rotating this area about the DAC axis. A DAC windows opening of 70° and molybdenum wavelength have been depicted to scale in this construction; the dotted circles correspond to the resolution of 0.80 Å (larger) and 0.94 Å (smaller). |
![[Figure 12]](sc5016fig12.jpg)
| FOUNDATIONS ADVANCES |
ISSN: 2053-2733
