Non-destructive and radiochemical determination of the neutron-induced production cross section of I-129 from Te and other neutron-induced cross sections on Te at 14.7 MeV

Cross sections of twelve neutron-induced reactions on tellurium at 14.7 MeV have been determined. Among them are the (n,2n) cross sections for the pro duction of both Te-129 isomers which were determined using gamma ray spectr ometry. These reactions dominate the cosmogenic production of I-129 in mete oroids and are therefore of special importance. In addition, the neutron-in duced cross section on Te at 14.7 MeV for the production of I-129 was also determined directly by accelerator mass spectrometry (AMS) after radiochemi cal separation. The results for the production cross section of I-129 deter mined by the two methods agree within 5%.