SHRIMP II

Retired high-precision SIMS for isotopic and elemental analysis. Optimized for U-Pb dating and trace elements.

• Status: Discontinued
• Country: Australia
• Isotopic: Yes
• Elemental: Yes
• Type of measurable elements: Most of elements, isotopes, and molecular species
• Measurable isotopes/elements: Isotopes of U, Pb, Th, and trace elements
• Analyzer type : Magnetic Sector MS
• Ion source type: Cs+ and O2- primary ion beams
• Inlet types: Solid sample mounts
• High Resolution : Yes
• Mass resolution/ Mass resolving power : Up to 13,000
• Sensitivity : Better than 18 cps/ppm for Pb isotopes
• Detection limits : Sub-ppm level
• Detector type : Electron multiplier and Faraday cup
• Primary beam : Cs+ or O2-
• Voltage : ~10–15 kV
• Spatial resolution : 5–30 µm
• Depth profile : 1–5 µm sputtering depth
• Beam energy : ~10–15 kV
• Camera : Integrated CCD camera
• Geometry type : Forward geometry
• Focusing type : Magnetic and electrostatic focusing
• Magnetic sector radius/ angle : 1000 mm/ 72.5 deg
• Electric sector radius/ angle : 1270 mm/ 85 deg
• Cooling system : Active and passive cooling
• Vacuum system : Differential pumping
• Dimensions and Weight: Beamline >7 m, weight >12 tonnes