Production, Collection, and Purification of 47 Ca for the Generation of 47 Sc through Isotope Harvesting at the National Superconducting Cyclotron Laboratory
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States, National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, United States
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, United States
- Department of Chemistry, Hunter College of the City University of New York, New York, New York 10065, United States, Ph. D. Program in Chemistry, The Graduate Center of the City of New York, New York, New York 10016, United States
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
An experiment was performed at the National Superconducting Cyclotron Laboratory using a 140 MeV/nucleon 48Ca beam and a flowing-water target to produce 47Ca for the first time with this production route. A production rate of 0.020 ± 0.004 47Ca per incoming beam particle was measured. An isotope harvesting system attached to the target was used to collect radioactive cationic products, including 47Ca, from the water on a cation exchange resin. The 47Ca collected was purified using three separation methods optimized for this work: 1) DGA resin with HNO3 and HCl, 2) AG MP-50 cation exchange resin with an increasing concentration gradient of HCl, and 3) AG MP-50 resin with a methanolic HCl gradient. These methods resulted in ≥99 ± 2% separation yield of 47Ca with 100% radionuclidic purity within the limits of detection for HPGe measurements. ICP-OES was used to identify low levels of stable ions in the water of the isotope harvesting system during the irradiation and in the final purified solution of 47Ca. For the first time, this experiment demonstrated the feasibility of production, collection, and purification of 47Ca through isotope harvesting for the generation of 47Sc for nuclear medicine applications.
- Research Organization:
- Michigan State Univ., East Lansing, MI (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC02-06CH11357; SC0018637; NA0003864
- OSTI ID:
- 1682510
- Alternate ID(s):
- OSTI ID: 1699394; OSTI ID: 1762262
- Journal Information:
- ACS Omega, Journal Name: ACS Omega Vol. 5 Journal Issue: 43; ISSN 2470-1343
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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