Development of AMS measurements and applications at the CIAE

Progress in AMS measurement of U isotope ratios in nanogram U samples

“…The measurement of U isotopic ratios in ultra-trace uranium samples was performed on the HI-13 tandem AMS system at CIAE [10]. The 208 Pb 16 O 2 À beam current from high purity PbO 2 alone was used to simulate the transport of uranium isotopes to avoid the ionizer poisoning for the MC-SNICS ion source and cross-contamination caused by thorium element and constant uranium, respectively.…”

Large projects at the accelerator mass spectrometry facility at the China Institute of Atomic Energy during the last 12years

“…The original line, beam line 1, is on the L20 port of the switching magnet, and the second line has been established on the R20 port. The beam line 1 is dedicated to AMS experiment [1]. Between the switching magnet and the detection system there exist ion-optical elements, and a 16°electrostatic analyzer.…”

“…[1], were developed at CIAE AMS laboratory in the 1990s. However, the sensitivity and precision of measurement can not meet the requirements from the ever-increasing application fields.…”

“…As described in the last report [1], the HI-13 tandem accelerator at the CIAE is a multi-user facility: for many years only a small part of beam time was allocated to AMS. Also, the AMS research was mainly focused on capability development and applications with the nuclides of 10 Be, 36 Cl, 26 Al, and 41 Ca.…”