Abstract
A medical application subgroup of The SPring-8 Users Society drew up a plan of a building design for a Biomedical Imaging Center (BMIC) in cooperation with RIKEN. 1 1 Japanese abbreviation of the Institute for Physical and Chemical Research. From our experiences of more than 15 years in this field we have found that various energies of monochromatic X-rays, strong photon densities, as well as large exposure fields are necessary, and will thus implement them in the BMIC. We therefore proposed the installation of an undulator and a wiggler. The BMIC is located 200 m from the light source to obtain a 20 cm-wide exposure field supposing that the wiggler device is installed at the light source. White X-rays from the undulator irradiate a target element generating fluorescent, semi-monochromatic, and widely spread X-rays. Monochromatic X-rays, K α, may be specifically extracted by cutting off the K β component. A monochromatic undulator beamline is now being constructed. The last light source should be the wiggler to cover a wide range of medical applications.
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