Layer line screens Weissenberg

Sakabe, N. A focusing Weissenberg camera with multi-layer-line screens for macromolecular crystallography. J. Appl. Crysi. 16, 542-547 (1983). [Pg.274]

Figure 18. Principle of the Weissenberg camera a) tqui-iiiclinalion axis b) Film c) Layer-line screen d) Crystal e) Equi-inclination angle setting...

In the Weissenberg method the crystal is also oscillated about an a.xis. The camera has, in addition, a metal screen with a slit in it that selects out a single layer line and excludes all other layer lines. In order... [Pg.244]

Fig. 7.8. Equi-inclination Weissenberg camera, (a) is the arrangement for recording the zero layer and (b) is the arrangement for recording the first layer photographs. Note in (b), the crystal and the film cassette with the layer screen are rotated through an angle (5 and the layer line selector screen is shifted through a distance of C/2 = r tan <5 for recording the first layer diffraction cone. The incident X-ray beam coincides with the diffraction cone in this equi-inchnation setup...

$Fig. 7.8. Equi-inclination Weissenberg camera, (a) is the arrangement for recording the zero layer and (b) is the arrangement for recording the first layer photographs. Note in (b), the crystal and the film cassette with the layer screen are rotated through an angle (5 and the layer line selector screen is shifted through a distance of C/2 = r tan <5 for recording the first layer diffraction cone. The incident X-ray beam coincides with the diffraction cone in this equi-inchnation setup...$

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...