A new small accelerator for radiocarbon dating

The ETH Zurich AMS facilities: Performance parameters and reference materials

“…It was the first AMS system that could demonstrate that 14 C measurements at low energies are possible [2]. Today, much smaller AMS systems are used for 14 C analyses operating at even lower TV (see next section and Ref.…”

“…At that time, only the 6 MV HVEC EN-Tandem facility ''TANDEM'' was in operation. In the following years, research at the Laboratory of Ion Beam Physics (LIP) at ETH Zurich led to breakthroughs in the development of small, sub-MV AMS systems [2][3][4][5]. Today, the ETH Zurich AMS facility consists of three AMS systems, the 6 MV TANDEM, the 0.6 MV NEC Pelletron ''TANDY'' [6,7], and the 0.2 MV 14 C facility ''MICADAS'' [8,9], where the latter is a complete LIP development.…”

Detection of UH3+ and ThH3+ molecules and 236U background studies with low-energy AMS

“…The compact 600 kV AMS system TANDY was initially designed for radiocarbon measurements [18], but its potential for heavy ions was soon studied [6,19]. Following recent modifications, including the installation of an additional magnet on the high-energy (HE) side of the spectrometer [20], the abundance sensitivity for the determination of 236 U/ 238 U ratios has improved by three orders of magnitude [7] using the setup shown in Fig.…”

Carrier free 10Be/9Be measurements with low-energy AMS: Determination of sedimentation rates in the Arctic Ocean

“…The carrier-free Be samples are analyzed at the compact TANDY AMS system, which originally had been designed for 14 C measurements at low energies [12]. In the meantime, the setup has been modified: By installing a second magnet on the high-energy (HE) side of the spectrometer the background level for 10 Be/ 9 Be measurements has been reduced below 10 À15 [13].…”