Figure 8.1.2.1

Helliwell, J. R.

doi:10.1107/97809553602060000669

International
Tables for
Crystallography
Volume F
Crystallography of biological molecules
Edited by M. G. Rossmann and E. Arnold

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International Tables for Crystallography (2006). Vol. F. ch. 8.1, p. 156 | 1 | 2 |

Figure 8.1.2.1

J. R. Helliwell^a ^*

^aDepartment of Chemistry, University of Manchester, M13 9PL, England
Correspondence e-mail: john.helliwell@man.ac.uk

Figure 8.1.2.1

(a) Evolution of X-ray source brilliance $[(\hbox{photons s}^{-1} \;\hbox{mrad}^{-2} \;\hbox{mm}^{-2}\hbox{ per }0.1\hbox{\%} \ \delta\lambda/\lambda)]$ in the hundred years since Rontgen's discovery of X-rays in 1895. Adapted from Coppens (1992). (b) The evolution of storage-ring synchrotron-radiation sources over the decades, as illustrated by their increasing number and range of machine energies up to the present (Suller, 1998).