Separation of terbium from proton-irradiated gadolinium oxide targets – development of an effective, scalable and automatable process

Peikin, Justin M.; Tara, Vivek K.; Johnson, Taylor R.; Barnhart, Todd E.; Engle, Jonathan W.; Ellison, Paul A.

doi:10.1016/j.apradiso.2025.112138

Separation of terbium from proton-irradiated gadolinium oxide targets – development of an effective, scalable and automatable process

Journal Article · Tue Aug 26 00:00:00 EDT 2025 · Applied Radiation and Isotopes

DOI:https://doi.org/10.1016/j.apradiso.2025.112138· OSTI ID:2588114

Peikin, Justin M. ^[1]; Tara, Vivek K. ^[1]; Johnson, Taylor R. ^[1]; Barnhart, Todd E. ^[1]; Engle, Jonathan W. ^[1]; ^[1]

University of Wisconsin School of Medicine and Public Health, Madison, WI (United States)

This work reports an effective and scalable radiochemical separation process for isolating terbium from Gd₂O₃. The separation process uses three commercially available extraction chromatography resin columns, has been implemented on a computer-controlled chemistry module, and tested with 100 mg quantities of proton-irradiated ^natGd₂O₃. Here, the 4-hour separation procedure isolated radioterbium in 1.3 mL of 0.01 M HCl with 80 ±8% radiochemical yield and a Gd decontamination factor >(1.2 ± 0.3)·10⁵.

View Accepted Manuscript (DOE)

Research Organization:: Texas A & M University, College Station, TX (United States); University of Wisconsin, Madison, WI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Office of Isotope R&D and Production (IRP)

Grant/Contract Number:: SC0022550

OSTI ID:: 2588114

Alternate ID(s):: OSTI ID: 3021417

Journal Information:: Applied Radiation and Isotopes, Journal Name: Applied Radiation and Isotopes Vol. 226; ISSN 0969-8043

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Separation of terbium from proton-irradiated gadolinium oxide targets – development of an effective, scalable and automatable process

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