Production cross-section of 230Ra in the reaction of 60 MeV/u 18O ions with 238U
- Received Date: 2008-07-16
- Accepted Date: 1900-01-01
- Available Online: 2008-01-03
Abstract: A thick natural uranium target was bombarded with a 60 MeV/u 18O beam. The neutron-rich isotope 230Ra as the target residue was produced through the multinucleon transfer reaction(238U-4p-4n). The barium and radium fraction as BaCl2 precipitate were radiochemically separated first from the mixture of uranium and reaction products. Then, the radium fraction was separated from BaCl2 precipitate by using cation exchange technique. The γ-ray spectra of the Ra fraction were measured using an HPGe detector. The production cross sections of 230Ra were obtained by a combination of the radiochemical separation technique and off-line γ-ray spectroscopy. The cross section of 230Ra has been determined to be 66±20 μb.