EXCITATION-FUNCTIONS OF DEUTERON INDUCED REACTIONS ON TE-123 - RELEVANCE TO THE PRODUCTION OF I-123 AND I-124 AT LOW AND MEDIUM-SIZED CYCLOTRONS

Excitation functions were measured for (d,n) and (d,2n) reactions on i sotopically enriched Te-123 from their respective thresholds up to 12. 5 MeV by the stacked-foil technique. The production yields of I-123 an d I-124 over suitable energy ranges were deduced from the measured exc itation functions. The results do not meet the expectation of producin g I-123 or I-124 in high purity and with high yield via a deuteron ind uced reaction on Te-123. The data should, however, be useful in estima ting the level of impurities in production processes involving (d,xn) reactions on Te-124 or other isotopes of tellurium. A comparison of va rious routes for the production of both I-123 and I-124 at a small or medium-sized cyclotron is given. Copyright (C) 1997 Elsevier Science L td