UC Santa Barbara

Laser-Ablation Split-Stream

This unique laser ablation plasma source facility enables LASS (laser ablation split-stream) analysis: simultaneous geochronology and trace-element geochemistry with 5-50 micron spatial resolution. The LASS facility consists of

Nu Instruments Plasma 3D multi-collector ICP with sixteen Faraday cups, 5 low-mass Daly dectors, and one high-mass Daly detector
Nu Instruments Plasma HR-ES multi-collector ICP with twelve Faraday cups and four low-mass ion counters
Agilent 7700x quadrupole inductively coupled plasma mass spectrometer
Cetac / Photon Machines 193 nm excimer Analyte laser with HelEx cell

Associated Instrumentation

The LASS facility is supported by extensive associated Earth-Science instrumentation, including

Cameca SX-100 electron microprobe with 5 WDS detectors, an EDS detector, and a CL detector
FEI Quanta 400f field-emission, environmental scanning electron microscope with an EBSD detector, BSE detector, SE detector, EDS detector, and a CL detector
Thermo Fisher Triton thermal ionization mass spectrometer
Class 100 Clean Room
petrographic microscopes, cameras, and thin-section scanning equipment
rock crushing and mineral separation facilities
clean lab

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