| 摘要 |
An X-ray tube having a structure suitable for irradiating X-rays over a wide range, and an X-ray irradiator employing it. The X-ray tube (1) is provided, in a vacuum enclosure, with an electron source for radiating electrons and a target material generating X-rays in response to incidence of electrons from the electron source, wherein the vacuum enclosure is provided with an X-ray take-out window for taking out the X-rays generated from the target material to the outside. The X-ray take-out window is constituted of a plurality of window units (13A, 13B) including one or more through holes (13) provided in the vacuum enclosure and arranged in a plurality of, at least two, rows along the longitudinal direction of the vacuum enclosure, and the plurality of window units (13A, 13B) are arranged in zigzag along the longitudinal direction of the vacuum enclosure between the adjoining rows. |
