MILEA

Next-generation low-energy AMS system for multi-isotope analysis. Combines MICADAS technology with the ETH “TANDY” spectrometer design. Features compact design and high automation.

• Status: Active
• Country: Switzerland
• Isotopic: Yes
• Type of measurable elements: Radiocarbon and cosmogenic nuclides
• Measurable isotopes/elements: Radiocarbon, actinides, and cosmogenic nuclides - ¹⁰Be, ¹⁴C, ²⁶Al, ⁴¹Ca, ¹²⁹I, U, Pu, and other actinides
• Analyzer type : Accelerator MS
• Ion source type: Hybrid cesium negative sputter ion source for solids and gases
• Inlet types: Random access sample changer with 40 positions
• High Resolution : Yes
• Multicollector : Yes
• Collectors qty : 7 Faraday cups on the high-energy side
• Sensitivity : High sensitivity with helium stripping
• Abundance sensitivity : <5 × 10⁻¹³ for U
• Detection limits : Sub-parts per trillion for selected isotopes
• Precision : <2 ‰ for ¹⁴C/¹²C and ¹³C/¹²C ratios
• Detector type : High-resolution ΔE-Eres gas ionization chamber
• Primary beam : Negative cesium sputter
• Accelerator voltage : 300 kV
• Geometry type : Achromatic combination of magnetic and electrostatic deflectors
• Focusing type : Magnetic and electrostatic focusing
• Magnetic sector radius/ angle : 90° and 110° magnetic deflectors on high-energy side
• Electric sector radius/ angle : 120° electrostatic deflector
• Cooling system : Air-cooled system, no cooling water needed
• Vacuum system : Vacuum insulated high-voltage platform, no SF₆ needed
• Gas supply: Helium stripping gas
• Power Requirements and Consumption : Max. 60 kW (Isotope-dependent)
• Dimensions and Weight: 3.5 m × 7 m × 2 m, 15,000 kg