Figure 15
Plot of experimental ADC IC current values as a function of nominal ring current (black dots). The grey solid line represents a linear fit to the experimental data points with the smallest nominal ring-current values. The short grey dashed line is the same linear fit but has been plotted on a scale where both axes have been `magnified' by a factor of 1000. The black solid line shows the results of calculations performed with spec.exe, including IC electron-loss, but not recombination effects. Finally, the black dashed curve is the result of full spec.exe calculations, including both and . Calculations were performed for X-ray energies from 1 to 1000 keV in 0.1 keV steps, and 20 µm steps across the beam. See text for further details. |