Quantitative gas-phase separation of carrier-free thallium radioisotopes from proton-irradiated natHgO.
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| Title: | Quantitative gas-phase separation of carrier-free thallium radioisotopes from proton-irradiated natHgO. |
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| Authors: | Wilson, Jennifer M.1,2 (AUTHOR), Herrmann, Dominik2 (AUTHOR), Grundler, Pascal V.3 (AUTHOR), van der Meulen, Nicholas P.2,3 (AUTHOR), Sommerhalder, Alexander3 (AUTHOR), Steinegger, Patrick1,2 (AUTHOR) patrick.steinegger@psi.ch |
| Source: | Journal of Radioanalytical & Nuclear Chemistry. May2025, Vol. 334 Issue 5, p3813-3818. 6p. |
| Subjects: | Thermolysis, Proton accelerators, Radioisotopes, Thallium, Mercury (Element) |
| Abstract: | Carrier-free 202 Tl was thermally separated from proton-irradiated nat HgO . Pressed nat HgO targets were irradiated with ≈ 26 MeV protons at the IP2 beamline of the high-intensity proton accelerator facility at the Paul Scherrer Institute. The well-known thermal decomposition of HgO at > 470 ∘ C and the strong adsorption of Tl on a Ta surface allowed for a simple and quantitative gas-phase separation of carrier-free Tl from bulk amounts of HgO target material between 550 and 670 ∘ °C. The separation efficiency was verified by γ -spectroscopy via the main γ -emissions of 202 Tl and co-produced 203 Hg . This method generally provides a fast and reliable preparation of carrier-free, neutron-deficient Tl radioisotopes (e.g., medically relevant 201 Tl ) from a proton-irradiated nat HgO matrix. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Carrier-free 202 Tl was thermally separated from proton-irradiated nat HgO . Pressed nat HgO targets were irradiated with ≈ 26 MeV protons at the IP2 beamline of the high-intensity proton accelerator facility at the Paul Scherrer Institute. The well-known thermal decomposition of HgO at > 470 ∘ C and the strong adsorption of Tl on a Ta surface allowed for a simple and quantitative gas-phase separation of carrier-free Tl from bulk amounts of HgO target material between 550 and 670 ∘ °C. The separation efficiency was verified by γ -spectroscopy via the main γ -emissions of 202 Tl and co-produced 203 Hg . This method generally provides a fast and reliable preparation of carrier-free, neutron-deficient Tl radioisotopes (e.g., medically relevant 201 Tl ) from a proton-irradiated nat HgO matrix. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 02365731 |
| DOI: | 10.1007/s10967-025-10125-y |
