Radiochemical analysis of a copper beam dump irradiated with high-energetic protons
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Dorothea Schumann
Abstract
The radionuclide inventory of a copper beam dump from the 590 MeV proton accelerator of the Paul Scherrer Institute in Switzerland was determined, focusing on radioisotopes with half-lives of more than 60 d, and in particular, of long-lived isotopes with T1/2=104−107 years, which are important regarding radioactive waste management. The measurements were carried out using high resolution γ-measurement without sample destruction, as well as liquid scintillation counting (LSC) and accelerator mass spectrometry (AMS) after chemical separation. For the first time, a beam dump from a high power accelerator facility was completely characterized concerning the depth and radial distribution profile of the most hazardous and/or long-lived radionuclides. Moreover, it turned out that some of the investigated radionuclides, like for instance 26Al, 44Ti or 60Fe represent valuable material for application in several scientific fields like nuclear astrophysics, basic nuclear physics research, radiopharmacy and many others. Therefore, based on the analytical results, a special research and development program has been started at PSI objecting on specific preparative extraction of long-lived radioisotopes (ERAWAST — exotic radionuclides from accelerator waste for science and technology).
© by Oldenbourg Wissenschaftsverlag, München, Germany
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- Radiochemical analysis of a copper beam dump irradiated with high-energetic protons
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- Extraction of niobium and tantalum isotopes using organophosphorus compounds. Part I – Extraction of “carrier-free” metal concentrations from HCl solutions
- Extraction of niobium and tantalum isotopes using organophosphorus compounds. Part II – Extraction of “carrier-free” concentrations from HCl/LiCl solutions
- Interaction between uranium(VI) and siderite (FeCO3) surfaces in carbonate solutions
Articles in the same Issue
- Radiochemical analysis of a copper beam dump irradiated with high-energetic protons
- Sorption and desorption of uranium(VI) on silica: experimental and modeling studies
- Adsorption of humic acid and Eu(III) to multi-walled carbon nanotubes: Effect of pH, ionic strength and counterion effect
- Separation of actinides using hollow fiber supported liquid membranes
- Towards an optimized flow-sheet for a SANEX demonstration process using centrifugal contactors
- Extraction of astatine-211 in diisopropylether (DIPE)
- Extraction of niobium and tantalum isotopes using organophosphorus compounds. Part I – Extraction of “carrier-free” metal concentrations from HCl solutions
- Extraction of niobium and tantalum isotopes using organophosphorus compounds. Part II – Extraction of “carrier-free” concentrations from HCl/LiCl solutions
- Interaction between uranium(VI) and siderite (FeCO3) surfaces in carbonate solutions
