A new cross-section measurement of reactions induced by 3 He particles on a carbon target

The production of intense beams of light radioactive nuclei can be achieved at the SPIRAL2 facility using intense stable beams accelerated by the driver accelerator and impinging on light targets. The isotope 14 O is identified to be of high interest for future experiments. The excitation function of the production reaction 12 C( 3 He, n) 14 O was measured between 7 and 35MeV. Results are compared with literature data. As an additional result, we report the first cross-section measurement for the 12 C( 3 He, α + n) 10 C reaction. Based on this new result, the potential in-target 14 O yield at SPIRAL2 was estimated: 2.4×10 11 pps, for 1mA of 3 He at 35MeV. This is a factor 140 higher than the in-target yield at SPIRAL1.