ProTIMS

Chinese–Russian thermal ionization mass spectrometer

• Status: Active
• Country: China
• Isotopic: Yes
• Elemental:
• Type of measurable elements: Thermoionizing elements (Sr, Nd, Os, Pb, U, and others)
• Measurable isotopes/elements: 234U, 235U, 236U, 238U, 87Sr/86Sr, 143Nd/144Nd, and others
• Analyzer type : Magnetic Sector MS
• Ion source type: Thermal ionization
• Inlet types: sample turret; optional filament preheating and oxygen bleed system
• Mass range : 3-280 amu
• High Resolution :
• Mass resolution/ Mass resolving power : >550 (U at 10% valley definition)
• Multicollector : Yes
• Collectors qty : 9 (8 moveable)
• Sensitivity :
• Abundance sensitivity : ( 238U 1 amu) ≤ 5 ppm
• Dynamic range :
• Detection limits :
• Precision :
• Signal stability, relative standard deviation : Peak stability: ±30 ppm over 30 minutes
• Detector type : Faraday cups and Secondary Electron Multipliers (SEM)
• Possible amplifiers : 10¹¹ Ω
• Acceleration voltage : 10 kV
• Torch :
• Dwell time :
• Sample turret : 21-position turret
• Background :
• Geometry type : Single-focusing geometry
• Focusing type :
• Magnetic sector radius/ angle :
• Electric sector radius/ angle :
• Cooling system :
• Vacuum system : <5×10−8 mbar (ion source); <3×10−9 mbar (analyzer)
• Gas supply:
• Power Requirements and Consumption :
• Environmental requirements :
• Dimensions and Weight: