| Autor: |
McKenna P; Department of Physics, University of Strathclyde, Glasgow G4 0NG, Scotland, United Kingdom. p.mckenna@phys.strath.ac.uk, Ledingham KW, Shimizu S, Yang JM, Robson L, McCanny T, Galy J, Magill J, Clarke RJ, Neely D, Norreys PA, Singhal RP, Krushelnick K, Wei MS |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2005 Mar 04; Vol. 94 (8), pp. 084801. Date of Electronic Publication: 2005 Mar 04. |
| DOI: |
10.1103/PhysRevLett.94.084801 |
| Abstrakt: |
A beam of MeV protons, accelerated by ultraintense laser-pulse interactions with a thin target foil, is used to investigate nuclear reactions of interest for spallation physics. The laser-generated proton beam is shown (protons were measured) to have a broad energy distribution, which closely resembles the expected energy spectrum of evaporative protons (below 50 MeV) produced in GeV-proton-induced spallation reactions. The protons are used to quantify the distribution of residual radioisotopes produced in a representative spallation target (Pb), and the results are compared with calculated predictions based on spectra modeled with nuclear Monte Carlo codes. Laser-plasma particle accelerators are shown to provide data relevant to the design and development of accelerator driven systems. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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