Generic Studies of Radioactivity Induced by High-Energy Beams in Different Absorber Materials
| Autor: | D. Forkel-Wirth, Stefan Roesler, M. Brugger |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Nuclear and High Energy Physics
Proton Chemistry 020209 energy Physics::Medical Physics Induced radioactivity chemistry.chemical_element 02 engineering and technology Tungsten Condensed Matter Physics Ion Nuclear physics 020303 mechanical engineering & transports 0203 mechanical engineering Nuclear Energy and Engineering 0202 electrical engineering electronic engineering information engineering Physics::Accelerator Physics Irradiation Atomic physics Nucleon Carbon Beam (structure) |
| Zdroj: | Nuclear Technology. 168:665-669 |
| ISSN: | 1943-7471 0029-5450 |
| DOI: | 10.13182/nt09-a9286 |
| Popis: | The FLUKA code is used to simulate the residual dose rates around a typical beam absorber considering various scenarios. The latter include carbon, copper, and tungsten as jaw materials, different beam energies, protons, and lead ion beams as well as different irradiation and cooling times. Using the dose rate maximum close to the absorber surface, the study investigates the cooling time dependence for the different scenarios. It is found to be similar for all jaw materials and beam energies. The dose rate scales with energy as E 0.83 and with the number of nucleons when comparing proton beam with lead ions. After a sufficiently long cooling time, a few radionuclides produced in the steel tank, such as 56 Co, 58 Co, 48 V, and 54 Mn, dominate the dose rate. The study can be easily extended to other materials or irradiation scenarios and can be applied to first evaluations of given accelerator design options. |
| Databáze: | OpenAIRE |
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