Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium

Fitzsimmons, Jonathan; Griswold, Justin; Medvedev, Dmitri; Cutler, Cathy; Mausner, Leonard

doi:10.3390/molecules24061095

Title: Defining Processing Times for Accelerator Produced ²²⁵Ac and Other Isotopes from Proton Irradiated Thorium

Journal Article · Wed Mar 20 00:00:00 EDT 2019 · Molecules

DOI:https://doi.org/10.3390/molecules24061095· OSTI ID:1503515

Fitzsimmons, Jonathan ^[1];

^[2]; Medvedev, Dmitri ^[1]; Cutler, Cathy ^[1]; Mausner, Leonard ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States). Isotope Production Lab. Collider-Accelerator Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Isotope and Fuel Cycle Technology Division

During the purification of radioisotopes, decay periods or time dependent purification steps may be required to achieve a certain level of radiopurity in the final product. Actinum-225 (Ac-225), Silver-111 (Ag-111), Astatine-211 (At-211), Ruthenium-105 (Ru-105), and Rhodium-105 (Rh-105) are produced in a high energy proton irradiated thorium target. Experimentally measured cross sections, along with MCNP6-generated cross sections, were used to determine the quantities of Ac-225, Ag-111, At-211, Ru-105, Rh-105, and other co-produced radioactive impurities produced in a proton irradiated thorium target at Brookhaven Linac Isotope Producer (BLIP). Ac-225 and Ag-111 can be produced with high radiopurity by the proton irradiation of a thorium target at BLIP.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704; AC05-00OR22725

OSTI ID:: 1503515

Alternate ID(s):: OSTI ID: 1593253; OSTI ID: 1761762

Report Number(s):: BNL-211456-2019-JAAM; BNL-213553-2020-JAAM

Journal Information:: Molecules, Vol. 24, Issue 6; ISSN 1420-3049

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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References (12)

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Cited By (2)

Optimization of Cation Exchange for the Separation of Actinium-225 from Radioactive Thorium, Radium-223 and Other Metals Fitzsimmons, Jonathan; Foley, Bryan; Torre, Bryna Molecules, Vol. 24, Issue 10 https://doi.org/10.3390/molecules24101921	journal	May 2019
The application of poorly crystalline silicotitanate in production of 225Ac Fitzsimmons, Jonathan; Abraham, Alyson; Catalano, Demetra Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-48021-7	journal	August 2019

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07 ISOTOPE AND RADIATION SOURCES
isotope production
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proton irradiation
fission products
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43 PARTICLE ACCELERATORS

Title: Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium

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References (12)

Cited By (2)

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Title: Defining Processing Times for Accelerator Produced ²²⁵Ac and Other Isotopes from Proton Irradiated Thorium