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

Abstract

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.

Authors:
 [1]; ORCiD logo [2];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Isotope Production Lab. Collider-Accelerator Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Isotope and Fuel Cycle Technology Division
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1503515
Alternate Identifier(s):
OSTI ID: 1593253
Report Number(s):
BNL-211456-2019-JAAM; BNL-213553-2020-JAAM
Journal ID: ISSN 1420-3049
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Molecules
Additional Journal Information:
Journal Volume: 24; Journal Issue: 6; Journal ID: ISSN 1420-3049
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCES; isotope production; Actinium-225; Silver-111; MCNPX; Thorium; proton irradiation; fission products; Sr-82; critical process parameter; 43 PARTICLE ACCELERATORS

Citation Formats

Fitzsimmons, Jonathan, Griswold, Justin, Medvedev, Dmitri, Cutler, Cathy, and Mausner, Leonard. Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium. United States: N. p., 2019. Web. doi:10.3390/molecules24061095.
Fitzsimmons, Jonathan, Griswold, Justin, Medvedev, Dmitri, Cutler, Cathy, & Mausner, Leonard. Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium. United States. doi:10.3390/molecules24061095.
Fitzsimmons, Jonathan, Griswold, Justin, Medvedev, Dmitri, Cutler, Cathy, and Mausner, Leonard. Wed . "Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium". United States. doi:10.3390/molecules24061095. https://www.osti.gov/servlets/purl/1503515.
@article{osti_1503515,
title = {Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium},
author = {Fitzsimmons, Jonathan and Griswold, Justin and Medvedev, Dmitri and Cutler, Cathy and Mausner, Leonard},
abstractNote = {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.},
doi = {10.3390/molecules24061095},
journal = {Molecules},
number = 6,
volume = 24,
place = {United States},
year = {2019},
month = {3}
}

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