In recent years, the AMS system at the Nuclear Science Laboratory of the University of Notre Dame has introduced a series of upgrades which have dramatically increased the capabilities for the measurement of trace radionuclides. These upgrades have solved issues with isotopic selectivity in the injection system, allowed for the measurement of heavier radionuclides, and improved the quality of both ion beams and the data obtained with them. The specifics of the installed equipment, as well as preliminary results on isotopic sensitivities for previously measured and newly-developed radionuclides, are discussed. Finally, the impacts on the development of planned radionuclide measurements in the future, including measurements of the actinides, will be mentioned.

近年来，圣母大学核科学实验室的AMS系统进行了一系列升级，极大地提高了痕量放射性核素的测量能力。这些升级解决了进样系统中同位素选择性的问题，可以测量较重的放射性核素，并改善了离子束和从中获得的数据质量。讨论了已安装设备的详细信息以及先前测量和新开发的放射性核素的同位素敏感性初步结果。最后，将提及对未来计划的放射性核素测量（包括the系元素的测量）发展的影响。