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TY - UNPB AU - Synal, H.-A. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Low Energy Accelerator Mass Spectroscopy (AMS) J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - The technical evolution of AMS is summarized. AMS is the most sensitive isotope selective detection method for long-lived radionuclides, capable of measuring isotopic ratios as low as 1:10¹⁶. At present, C-14 is still the most important AMS nuclide but there are many applications of other nuclides such as Be-10, Al-26, Cl-36, Ca-41, I-129, and actinides. A key characteristic of any AMS system is the destruction of molecular interferences and subsequent analyses of atomic ions. In early instruments, highly charged ions (> 3+ ) were used, and fairly high ion energies, and as a consequence, large accelerators were required. Today, 1+ is used, molecular interferences are destroyed in multiple collisions with gas atoms or molecules at energies of a few hundred keV. Thus, C-14 AMS instruments develop towards lab size or tabletop devices. But, low energy AMS is not limited to radiocarbon only and there is a great potential for radionuclides not interfered by nuclear isobars. These developments have launched the wide spread use of AMS in various research fields and has resulted in a boom of new AMS facilities which impact the wide variety of applications of AMS in modern research. PB - JACoW CP - Geneva, Switzerland ER -