Arrangement and method for modifying the local intensity of x-ray radiation

摘要

An arrangement for modifying the local intensity of x-ray radiation includes an x-ray filter with a plurality of absorption chambers, which may be filled by a ferrofluid. The absorption chambers are stacked in the x-ray beam direction. The x-ray filter includes a plurality of storage containers in which the ferrofluid may be stored. Each of the absorption chambers is connected to a respective one of the storage containers. The absorption of the x-ray radiation is achieved as a result of individual absorption chambers being filled with the ferrofluid. By filling a different number of absorption chambers, the local intensity of the x-ray radiation may be modified easily, precisely and quickly.

主权项

1. An arrangement for modifying local intensity of x-ray radiation, the arrangement comprising:
an x-ray filter comprising a plurality of absorption chambers, each absorption chamber being configured to be filled by a ferrofluid and stacked in a direction of the x-ray radiation; a plurality of storage containers configured for storage of the ferrofluid, wherein each absorption chamber is respectively connected to one of the storage containers; a pressure device connected to the plurality of storage containers and configured to generate positive pressure or negative pressure using the ferrofluid, the pressure device comprising a positive pressure reservoir having a positive pressure valve and a negative pressure reservoir having a negative pressure valve; and separator layers that separate the stacked absorption chambers from one another, wherein each separator layer is positioned between, adjacent to, and parallel with a wall of one absorption chamber and a separate wall of an additional absorption chamber, each separator layer having an x-ray absorption configured to minimize or reduce a loss of x-ray photons.