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Title: Large scale accelerator production of 225Ac: Effective cross sections for 78–192 MeV protons incident on 232Th targets

Journal Article · · Applied Radiation and Isotopes
 [1];  [2];  [3];  [4];  [2];  [3];  [3];  [3];  [4];  [4];  [4];  [3];  [3];  [3];  [4];  [5];  [2];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Univ. of Tennessee, Knoxville, TN (United States)

Actinium-225 and 213Bi have been used successfully in targeted alpha therapy (TAT) in preclinical and clinical research. This paper is a continuation of research activities aiming to expand the availability of 225Ac. The high energy proton spallation reaction on natural thorium metal target has been utilized to produce millicurie quantities of 225Ac. The results of sixteen irradiation experiments of Th metal at beam energies between 78 and 200 MeV are summarized in this work. Irradiations have been conducted at Brookhaven National Laboratory (BNL) and Los Alamos National Laboratory (LANL), while target dissolution and processing was carried out at Oak Ridge National Laboratory (ORNL). Excitation functions for actinium and thorium isotopes as well as for some of the fission products are presented. The cross sections for production of 225Ac range from 3.6 to 16.7 mb in the incident proton energy range of 78 to 192 MeV. Based on these data, production of Curie quantities of 225Ac is possible by irradiating a 5.0 g cm-2232Th target for 10 days in either BNL or LANL proton irradiation facilities.

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:
SC00112704; AC05-00OR22725; AC0500OR22725
OSTI ID:
1346748
Alternate ID(s):
OSTI ID: 1333066; OSTI ID: 1397588
Report Number(s):
BNL-113608-2017-JA; R&D Project: KBCH139; KB0202011; TRN: US1701601
Journal Information:
Applied Radiation and Isotopes, Vol. 118, Issue C; ISSN 0969-8043
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

References (40)

Cyclotron production of Ac-225 for targeted alpha therapy11Dedicated to Prof. Dr. Franz Baumgärtner on the occasion of his 75th birthday. journal March 2005
Nuclear Data Sheets for A = 224 journal January 1997
Nuclear Data Sheets for A = 213 journal March 2007
Production of actinium-225 for alpha particle mediated radioimmunotherapy journal May 2005
Targeted α-therapy: past, present, future? journal January 2007
Nuclear Data Sheets for A = 215,219,223,227,231 journal August 2001
Nuclear Data Sheets for A=212 journal February 2005
Nuclear Data Sheets for A = 99 journal February 2011
Nuclear Data Sheets for A = 143 journal March 2012
Nuclear Data Sheets for A = 139 journal March 2001
Proton-induced fission at 190 MeV of nat W , 197 Au , nat Pb , 208 Pb , and 232 Th journal February 1999
Ac, La, and Ce radioimpurities in 225Ac produced in 40–200 MeV proton irradiations of thorium journal January 2014
Production of actinium, thorium and radium isotopes from natural thorium irradiated with protons up to 141 MeV journal April 2012
Therapeutic efficacy and toxicity of 225Ac-labelled vs. 213Bi-labelled tumour-homing peptides in a preclinical mouse model of peritoneal carcinomatosis journal January 2012
Reactions (p, 2pxn) sur le thorium 232 de 30 à 120 MeV journal January 1963
Fissionability of nuclides in the thorium region at excitation energies to 100 MeV journal November 1979
Charge dispersion studies of heavy-mass elements in the fission of 232Th by protons of medium energy journal December 1973
High-Energy-Proton Fission Cross Sections of U, Bi, Au, and Ag Measured with Mica Track Detectors journal April 1969
Measurement of cross sections for the [sup 232]Th(P,4n)[sup 229]Pa reaction at low proton energies
  • Jost, C. U.; Griswold, J. R.; Bruffey, S. H.
  • APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: Twenty-Second International Conference, AIP Conference Proceedings https://doi.org/10.1063/1.4802383
conference January 2013
Targeted Alpha-Particle Immunotherapy for Acute Myeloid Leukemia journal May 2014
A Critical Review of Alpha Radionuclide Therapy—How to Deal with Recoiling Daughters? journal June 2015
Nuclear Data Sheets for A = 221 journal April 2007
Re´actions nucle´aires de spallation induites sur le thorium par des protons de 150 et 82 MeV journal May 1961
The Los Alamos Neutron Science Center
  • Lisowski, Paul W.; Schoenberg, Kurt F.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 562, Issue 2 https://doi.org/10.1016/j.nima.2006.02.178
journal June 2006
Tumor Therapy with Targeted Atomic Nanogenerators journal November 2001
Gold Coated Lanthanide Phosphate Nanoparticles for Targeted Alpha Generator Radiotherapy journal January 2013
Development of a large scale production of 67Cu from 68Zn at the high energy proton accelerator: Closing the 68Zn cycle journal March 2012
Production of Ac-225 for cancer therapy by photon-induced transmutation of Ra-226 journal September 2007
Generator-produced alpha-emitters journal April 1998
Self-assembly of carbon nanotubes and antibodies on tumours for targeted amplified delivery journal September 2013
Nuclear Data Sheets for A = 140 journal July 2007
Nuclear Data Sheets for A = 141 journal November 2014
Application of ion exchange and extraction chromatography to the separation of actinium from proton-irradiated thorium metal for analytical purposes journal February 2015
Synthesis and characterization of lanthanum phosphate nanoparticles as carriers for 223Ra and 225Ra for targeted alpha therapy journal July 2015
Nuclear Data Sheets for A = 222 journal November 2011
Experimental data on ground- and excited-state properties for all nuclei with mass number A=144 have been compiled and evaluated. States populated in radioactive decay as well as in nuclear reactions have been considered. For these nuclei, level and decay schemes have been built, as well as tables of nuclear properties. This work supersedes the 1989 evaluation by J.K. Tuli (1989Tu02). Manuscripts published before December 2000 have been included in this work journal July 2001
Production of 52Fe via proton-induced reactions on manganese and nickel journal January 1990
Experimental and Theoretical Study of the Residual Product Nuclide Yields in 100-2600 MeV Proton-Irradiated Thin Targets journal August 2002
Proton-induced cross sections relevant to production of 225Ac and 223Ra in natural thorium targets below 200MeV journal November 2012
Production of 225Ac and 223Ra by irradiation of Th with accelerated protons journal February 2011

Cited By (10)

225Ac-PSMA-617 in chemotherapy-naive patients with advanced prostate cancer: a pilot study journal September 2018
Design of a Thorium Metal Target for 225Ac Production at TRIUMF journal February 2019
Radiometals for imaging and theranostics, current production, and future perspectives
  • Mikolajczak, Renata; van der Meulen, Nicholas P.; Lapi, Suzanne E.
  • Journal of Labelled Compounds and Radiopharmaceuticals, Vol. 62, Issue 10 https://doi.org/10.1002/jlcr.3770
journal July 2019
The inverse electron-demand Diels–Alder reaction as a new methodology for the synthesis of 225 Ac-labelled radioimmunoconjugates journal January 2018
Development of Targeted Alpha Particle Therapy for Solid Tumors journal November 2019
Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium journal March 2019
Safety and efficacy of targeted alpha therapy with 213Bi-DOTA-substance P in recurrent glioblastoma journal November 2018
Progress in Targeted Alpha-Particle Therapy. What We Learned about Recoils Release from In Vivo Generators journal March 2018
Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix journal August 2017
Microfluidics-based separation of actinium-225 from radium-225 for medical applications journal May 2019

Figures / Tables (13)