IsoProbe-T

Retired thermal ionization mass spectrometer with InflexIon™ optics, M17 multicollector.

• Status: Discontinued
• Country: UK
• Isotopic: Yes
• Type of measurable elements: Thermoionizing elements (Sr, Nd, Os, Pb, U, and others)
• Measurable isotopes/elements: 87Sr/86Sr, 143Nd/144Nd, 234U/238U, 206Pb/204Pb, and others
• Analyzer type : Magnetic Sector MS
• Ion source type: Thermal ionization
• Inlet types: filament turret with single, double, and triple filament capability
• Mass range : 2-280 amu
• Multicollector : Yes
• Collectors qty : 9 Faraday collectors; up to 7 ion-counting detectors (SEM or Daly)
• Sensitivity : High sensitivity for small sample sizes; optimized multicollector improves ion detection at picogram levels
• Abundance sensitivity : Improved by optional WARP filter to reduce interference by two orders of magnitude
• Dynamic range : Wide dynamic range with low-noise electronics optimized for ultra-trace analysis
• Detection limits : Sub-ppm levels for isotopic ratios
• Precision : <5ppm for Sr and Nd isotope ratio measurements
• Detector type : Long-life LI Faraday cups, Daly ion-counting detectors, and optional SEM for high dynamic range
• Possible amplifiers : Low-noise resistors housed in a Peltier-cooled vacuum chamber for stability
• Sample turret : 20-position stainless steel sample turret
• Geometry type : Double-focusing geometry with InflexIon™ optics
• Focusing type : Patented InflexIon™ optics for focused ion beam and maximum transmission
• Magnetic sector radius/ angle : 270 mm radius; 90° deflection
• Cooling system : Air-cooled magnet and electronics; liquid nitrogen cold trap for ion source
• Vacuum system : High-capacity turbomolecular pump (510 L/s) with liquid nitrogen cold trap
• Gas supply: Optional gas bleed for optimized negative ion detection