Beamline project to study radioactive materials at Soleil synchrotron radiation source

In the perspective of the construction of the new French synchrotron radiation facility SOLEIL, the scientific council decided that a beamline dedicated to study radioactive materials would be erected. Based on collaboration between different scientific groups, a multi-purpose beamline has been chosen regarding the needs of each. Either XAS or diffraction experiments could be performed. Special attention will be paid to the focusing beam in order to reduce the radioactivity by studying small samples or to probe local atomic arrangements. This presentation will report on the conceptual design of the station including ray-tracing studies and layout. (authors)