Determination of the 9Be(3He,pi)11B (i = 0,1,2,3) cross section at 135° in the energy range 1–2.5 MeV

The 9Be(3He,pi)11B cross sections for i = 0,1,2,3 at an angle of 135° in the energy range 1–2.5 MeV have been measured using two thin films with different Be thickness at selected energies. The new data extend previous results, that only existed at 90°, 120° and 150° angles, and down to 1.8 MeV, which prevented use of this reaction for samples containing Be at larger depths.