IsoProbe-T

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

• Status: Inactive
• Country: United Kingdom of Great Britain and Northern Ireland
• Isotopic: Yes
• Analyte Type / Target Of Analysis: 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
• 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