2. Astate-211
2.1 Features
Astatine (Z = 85) is the heaviest of the halogens. It exists only in the form of unstable isotopes with short half-lives (from 125 ns to 8.1 h for the 32 known isotopes). In its natural state, only traces, estimated at a few grams in total, are present throughout the earth's crust, resulting from the decay of heavy elements such as uranium. Although some of its isotopes can be produced artificially, the quantities of astatine obtained to characterize it remain too small (in the picogram range at best) to make it possible to assess its physical or chemical characteristics by conventional means, notably with the spectroscopic tools currently available. Most of this element's properties have therefore been estimated indirectly, often by extrapolation from its better-known...
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Astate-211
Bibliography
Bibliography
Websites
Nuclear Oncology Research Team http://www.crcina.org
Cyclotron Arronax http://www.cyclotron-nantes.fr
IRSN: knowledge base on radioactivity http://www.irsn.fr
Events
International symposium on radiopharmaceutical sciences. Held every two years. http://www.srsweb.org/meetings/
European symposium on radiopharmacy and radiopharmaceuticals. Held every two years in April. http://www.esrr.info/
Congress of...
Regulations
Institut de Radioprotection et de Sûreté Nucléaire (IRSN): institute covering all risks associated with ionizing radiation used in industry and medicine, as well as natural radiation. http://www.irsn.fr
Patents
Process for isolation and purification of astatine-211. United States Patent Application: 0160053345.
Method of producing radionuclides and apparatus therefore. WO/2018/007643
Method for synthesizing iodo- or astatoarenes using diaryliodonium salts. WO/2017/089492
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Astate-211. Arronax cyclotron, Saint-Herblain http://www.cyclotron-nantes.fr
Tubular furnace for astatine distillation. Verder France, Carbolite Division [email protected]
Organizations – Federations...
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