Dear colleagues, We are running a one-day short course at GSA Connects 2026 in Denver: *SC26CN05. Fundamentals and Geoscience Applications of Time-of-Flight Mass Spectrometry* Saturday, 10 October 2026, 8:00 a.m. to 5:00 p.m. Instructors: John Cottle, Andrew Kylander-Clark, Morgan Adamson (UCSB) Registration: https://store.geosociety.org/products/sc26cn05 The course covers the fundamentals of ToF separation and sample introduction, with applications drawn dominantly from laser ablation ICP-ToF-MS: geochronology, trace element and isotope imaging, mineral chemistry, single particle analysis, and full-spectrum screening. This will be a mostly hands-on course with participants collecting data remotely from a live LA-ICP-ToF-MS instrument and reducing and interpreting it themselves. We’ll also explore software tools and workflows for handling large, high-dimensional imaging datasets. By the end of the course, participants should be able to design LA-ICP-ToF-MS experiments and process and interpret the resulting data. The course is aimed at graduate students, postdocs, faculty, and analytical staff. No prior experience is needed. The course is generously sponsored by Nu Instruments and Elemental Scientific Lasers. Lunch is provided. Course cost is $15. For questions about course content, contact me directly. Please pass this along to anyone who may be interested. Thanks, John -- John Cottle Professor of Earth Science Faculty Director UCSB Natural Reserve System Department of Earth Science & Earth Research Institute Office: (805) 893-7315 Email: cottle@geol.ucsb.edu www.petrochronology.com [image: UC Santa Barbara]