Determination of Precision Fusion Cross Sections Using a High Efficiency Superconducting Solenoidal Separator

Abstract

Abstract. A novel fusion product separator based on a gas-filled superconducting solenoid has been developed at the Australian National University. Though the transmission efficiency of the solenoid is very high, precision cross sections measurements require this efficiency to be estimated accurately. A Monte Carlo simulation for the efficiency can be performed, but in turn requires knowledge of the angular distribution of the evaporation residues. We have developed a method to deduce the angular distribution of the evaporation residues from the laboratory-frame velocity distribution σ exp (v l ) of the evaporation residues measured after the solenoid. The method will be discussed, focussing on the example of 34 S+ 89 Y, where the angular distribution has been independently measured using a velocity filter [1]. The establishment of this method now allows the novel solenoidal separator to be used to obtain the most reliable, precision fusion cross-sections.