Summary
The interactions of high-energy protons with matter produce a large variety of radionuclides due to the diversity of the induced nuclear reactions. Some of those isotopes are very rare, exotic, and, in many cases, difficult to produce by complementary methods. Valuable isotopes, interesting for scientific and technological applications, can be extracted from samples stemming from the surroundings or components of a proton accelerator, in particular if the load of the initial particle current is relatively high (esp. in the Megawatt range). Since PSI operates one of the most powerful high-energy proton accelerators world-wide, this facility is best-suited for an R&D program aimed at “harvesting” such isotopes. An initiative called ERAWAST (Exotic Radionuclides from Accelerator Waste for Science and Technology) was started in 2006 in order to identify and motivate potential users. After six years, first achievements as well as realistic future plans for front-end experiments are available. The present contribution describes radiochemical separation techniques for selected examples, summarizes the most prominent results and gives an outlook on the upcoming experiments within the scope of the ERAWAST program.
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Artikel in diesem Heft
- Preface.
- New trends in nuclear data research for medical radionuclide production
- 68Ge/68Ga production revisited: excitation curves, target preparation and chemical separation – purification
- Cross-section measurements for the formation of manganese-52 and its isolation with a non-hazardous eluent
- Possibilities of preparation of exotic radionuclide samples at PSI for scientific investigations
- Radiochemical separation of 7Be from the cooling water of the neutron spallation source SINQ at PSI
- Solvent extraction of Zr and Hf from hydrochloric acid using tributylphosphate for the extraction of element 104, rutherfordium
- Radioanalytical techniques for the determination of 238U, 226Ra and 210Pb in the environment
- Speciation analysis of 129I and its applications in environmental research
Artikel in diesem Heft
- Preface.
- New trends in nuclear data research for medical radionuclide production
- 68Ge/68Ga production revisited: excitation curves, target preparation and chemical separation – purification
- Cross-section measurements for the formation of manganese-52 and its isolation with a non-hazardous eluent
- Possibilities of preparation of exotic radionuclide samples at PSI for scientific investigations
- Radiochemical separation of 7Be from the cooling water of the neutron spallation source SINQ at PSI
- Solvent extraction of Zr and Hf from hydrochloric acid using tributylphosphate for the extraction of element 104, rutherfordium
- Radioanalytical techniques for the determination of 238U, 226Ra and 210Pb in the environment
- Speciation analysis of 129I and its applications in environmental research