New energy degraded beam project at RIBF -- OEDO project

We propose construction of an energy-degrading system consisting of a RF deflector with two STQ's after a mono-energetic degrader in the SHARAQ beam line in the RIBF of RIKEN. The RF deflector acts as a focusing element for a secondary beam after a mono-energetic degrader, which provide a reasonably small beam size less than 2 cm (FWHM) even for energies less than 10 $A$ MeV. Possible physics programs especially for combination with $\gamma$-ray detectors arrays are discussed.