Gadolinium-153 line sources

The technology for Gd-153 line source production has been developed at SSC RIAR. The source active core is made of AI-Gd2O3 composition by means of on e of the following ways: either collecting pressed pellets or filling the s ource body with the composition followed by sintering. The composition is p repared by gadolinium salt thermal destruction on aluminium particles. The method allows setting gadolinium mass fraction (from 0.02 to 6%) with high accuracy and uniformity of distribution in the composition volume of more t han 95%. (C) 2000 Elsevier Science Ltd. All rights reserved.