Patent ID: 8629633

Claim:
A DC high-voltage source for providing DC voltage, comprising: a capacitor stack comprising: a first electrode configured to be brought to a first potential, a second electrode concentrically arranged with respect to the first electrode and configured to be brought to a second potential that differs from the first potential, and a plurality of intermediate electrodes concentrically arranged with respect to one another and concentrically arranged between the first electrode and the second electrode, wherein the plurality of intermediate electrodes are configured to be brought to a sequence of increasing potential levels between the first potential and the second potential, a switching device, to which the electrodes of the capacitor stack are connected and which is configured such that, during operation of the switching device, the electrodes of the capacitor stack concentrically arranged with respect to one another can be brought to increasing potential levels, wherein the spacing of the electrodes of the capacitor stack reduces toward the central electrode.