TIMS Laboratory

The climate controlled subroom housing the PhoeniX62 TIMS instrument, viewed from the control room. 

Welcome to the TIMS laboratory

The Princeton radiogenic isotope geoscience lab was completed in the summer of 2011 and took shipment of a IsotopX PhoeniX62 Thermal Ionization Mass Spectrometer (TIMS) in late September 2011. Following months of cleaning and blank measurement, we began doing high-precision U-Pb geochronology on zircons and other accessory minerals with sub-picogram Pb blanks, which is currently the focus of the lab's work. Please check out the publications from our group to see what we've been working on.  We also now have received another PhoeniX62, in spring 2019, which is equipped with ATONA amplifier boards, which are specialized for both ultra-low as well as high intensity Faraday measurements.  We are currently testing those to see what we can do with small U-Pb measurements.

TIMS geochronology is combined with available analytical equipment within the department of Geosciences, such as the ICP-MS lab run by Prof. Higgins, and a plethora of mineral separation and imaging facilities available within the department and on campus, including scanning electron microscopes (hosted at PRISM) capable of cathodoluminescence imaging quantitative geochemical characterization. 



Monday, Mar 4, 2019
Fact: About 66 million years ago, at the end of the Cretaceous period, 75 percent of plant and animal species went extinct, including the dinosaurs (...
Tuesday, Oct 2, 2018
by C.B. Keller, B. Schoene and K.M. Samperton
Our new paper, published in Geochemical Perspective Letters, demonstrates a new, less sobujective, method of calculating volcanic eruption ages from...
Wednesday, Sep 19, 2018
Grad student Jenn Kasbohm just published her work dating the Columbia River Basalts in Science Advances. The Princeton Press Release was also picked...