COMPOSITIONS OF HIGH SPECIFIC ACTIVITY SN-117M AND METHODS OF PREPARING THE SAME

摘要

Compositions of high specific activity 117m Sn with specific activityof greater than 100 Ci/g Sn and methods of producing the same. The methodincludes exposing 116Cd in a target layer (12) to an .alpha.-particle beam(16) of sufficientincident kinetic energy and duration to convert a portion of the 116Cd to 117m-Snto form an irradiated material. The irradiated material in the target layer(12)is dissolved to form an intermediate solution containing 117m Sn and 116Cd.The117m Sn is separated from the 116Cd to yield high specific activity 117m Sn.