Optimization of Deuteron Irradiation of 176Yb for Producing 177Lu of High Specific Activity Exceeding 3000 GBq/mg
Open accessAbstract
The irradiation of 176Yb with deuterons offers a promising pathway for the production of the theranostic radionuclide 177Lu. To optimize this process, calculations integrating deuteron transport, isotope production, and decay have been performed. In pure 176Yb, the undesired production of 174g+mLu occurs at higher deuteron energies, corresponding to a distribution slightly shallower than that of 177Lu. Hence, 174g+mLu can be effectively filtered out by employing either a low-energy deuteron beam or stacked foils. The utilization of stacked foils enables the production of 177Lu using a high-energy linear accelerator. Another unwanted isotope, 176mLu, is produced roughly at the same depth as 177Lu, but its concentration can be significantly reduced by selecting an appropriate post-irradiation processing time, owing to its relatively short half-life. The modeling approach extended to the mapping of yields as a function of irradiation time and post-irradiation processing time. An optimized processing time window was identified. The study demonstrates that a high-energy deuteron beam can be employed to produce 177Lu with high specific activity exceeding 3000 GBq/mg. The effect of different purity levels (ranging from 98% to 100%) was also discussed. The impurity levels have a slight impact. The modeling demonstrates the feasibility of obtaining 177Lu with a specific activity > 3000 GBq/mg and radionuclidic purity > 99.5% when using a commercially available 176Yb target of 99.6% purity.
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Production of over 100 radiopharmaceuticals has been a focal point, involving radioisotopes from nuclear research reactors or cyclotrons.
“Firstly, the production of over 100 radiopharmaceuticals has been a focal point, involving the use of radioisotopes from nuclear research reactors or cyclotrons [112].”
From Radiopharmaceuticals: navigating the frontier of precision medicine and therapeutic innovation (2024) · cites this paper as [112]
The Modeling Procedure states that isotope production is primarily dominated by reactor irradiation and cyclotrons. Neither that section nor the Introduction supports the claim that over 100 radiopharmaceuticals have been produced or have been a focal point. (LLM, conf=0.86)
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Radiopharmaceuticals: navigating the frontier of precision medicine and therapeutic innovation
Dhoundiyal, S., Srivastava, S., Kumar, S., Singh, G., Ashique, S., Pal, R., Mishra, N., & Taghizadeh-Hesary, F. (2024) · European Journal of Medical Research · doi:10.1186/s40001-023-01627-0 · Cited by 144 · see citing works
“Firstly, the production of over 100 radiop-harmaceuticals has been a focal point, involving the use of radioisotopes from nuclear research reactors or cyclo-trons [112].”
Background
- Authors
- Shao, L.
- Affiliations
- Texas A&M University (US)
- Corresponding author
- Shao, Lin
- ORCID
- Shao, Lin
- Venue
- Molecules
- Publisher
- MDPI AG
- Published
- 2023-08-14
- Volume
- 28
- Issue
- 16
- Pages
- 6053
- ISSN
- 1420-3049 (ISSN-L)
- PMC
- PMC10459485
- OpenAlex
- W4385811916
- Cited by
- 11
- References
- 28
- Citations by year
- 2026: 6 · 2025: 3 · 2024: 2
- FWCI
- 1.81
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Molecules (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiopharmaceutical Chemistry and Applications
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Nuclear physics research studies
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Chemical Reactions and Isotopes
- Keywords
- deuteron irradiation, theranostic radionuclides, specific activity, radionuclidic purity
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