Multiradiation generation apparatus and radiation imaging system utilizing dual-purpose radiation sources

摘要

A multiradiation generation apparatus according to the present invention includes a plurality of radiation sources arranged in a row. Each of the radiation sources includes an electron source configured to emit electrons and a target unit configured to generate radiation upon receiving electrons emitted from the electron source. At least one of the radiation sources is a dual-purpose radiation source used for both tomosynthesis imaging and non-tomosynthesis imaging, and the other radiation sources are single-purpose radiation sources used only for tomosynthesis imaging.

主权项

1. A multiradiation generation apparatus comprising:
a plurality of radiation sources arranged in a row, wherein at least one of the plurality of radiation sources is a dual-purpose radiation source and the remaining plurality of radiation sources are single-purpose radiation sources, wherein the dual-purpose radiation source is used for both tomosynthesis imaging and non-tomosynthesis imaging, and the single-purpose radiation sources are used only for tomosynthesis imaging wherein each of the plurality of radiation sources includes an electron source configured to emit electrons and a target unit configured to generate radiation upon receiving electrons emitted from the electron source, wherein each of the plurality of radiation sources further includes a shield arranged around the corresponding target unit, wherein the shield has a passage hole and an emission hole, and wherein the passage hole or the emission hole of the shield of the dual-purpose radiation source has a smaller diameter at a place where the passage hole or the emission hole is in contact with the target unit than that of each of the passage holes or the emission holes of the shields of the single-purpose radiation sources.