Geochronology
Geochronology
GChron
Articles | Volume 8, issue 3
Articles | Volume 8, issue 3
https://doi.org/10.5194/gchron-8-447-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-8-447-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 3
Short communication/technical note
 | 
10 Aug 2026
Short communication/technical note |  | 10 Aug 2026

Technical note: Design, construction, automation, and first-principles calibration of a low volume He measurement line

James R. Metcalf and Rebecca M. Flowers

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Short summary
(U-Th)/He chronology requires measuring the absolute amount of radiogenic He in a sample. While high-quality commercial He lines are available, these machines are not always ideal for researchers interested in developing new or emerging techniques like laser ablation (U-Th)/He chronology. This manuscript describes the design, construction, automation, and calibration of a new He analysis line in the University of Colorado Thermochronology Research and Instrumentation Lab (CU TRaIL) facility that is optimized for measuring small amounts of He.
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