Speaker
Description
For many years, element discoveries have become synonymous with a 48Ca beam on an actinide target. However, as we move towards discoveries of elements heavier than 118 we have to find new beam-target combinations and use beams of heavier proton numbers. At Berkeley Lab we investigate the use of 50Ti as such an alternative.
As a first step in this development, we produced 50Ti11+ with the VENUS source and used it to make 257Db using the 50Ti+209Bi fusion evaporation reaction in the Berkeley Gas-filled Separator (BGS). During the experiment, we were able to identify 257Db events through EVR-a-a coincidences and EVR-fission coincidences using our newly commissioned detector: the SuperHeavy RECoil detector (SHREC). As a second part in this experiment, we ramped our beam energy by 24 MeV and looked into the 3n, 4n and pxn channels of the 50Ti+209Bi reaction. The results of this experiments and their impact on what we know about the relevant Dubnium and Rutherfordium isotopes will be presented.
