Bookmark and Share

U-shape rotating anti-cathode compact X-ray generator: 20 times stronger than the commercially available X-ray source

J. Synchrotron Rad. (2013). 20, 829–833 (

[Energy plot] Take-off angle: 6˚, through Φ 10 μm pin-hole, at 75 mm from the target.

A rotating anti-cathode X-ray generator, where the inner surface of a cylindrical annulus as target is irradiated, has been developed; we call this 'U shape'. A brightness of 129 kW mm−2 was obtained with this new generator. In addition, by using oblique incidence of the electrons onto a rough target, the efficiency of the X-rays extracted increased two times compared with that using with vertical incidence of the electrons onto a smooth target. Overall the new X-ray generator brightness is in total 20 times stronger.

N. Sakabe, K. Sakabe, S. Ohsawa, T. Sakai, H. Kobayakawa, T. Sugimura, M. Ikeda, M. Tawada, N. Watanabe, K. Sasaki and M. Wakatsuki