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|Title:||Broad Energy Spectrum of Laser-Accelerated Protons for Spallation Related Physics|
|Authors:||MCKENNA P.; LEDINGHAM K.w.d.; SHIMIZU S.; YANG J.m.; ROBSON L.; MCCANNY T.; GALY JEAN; MAGILL JOSEPH; CLARK R.j.; NEELY D.; NORREYS P.a.; SINGHAL R.p.; KRUSHELNICK K.; WEI M.s.|
|Citation:||PHYSICAL REVIEW LETTERS vol. 94 p. 084801|
|Publisher:||AMERICAN PHYSICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||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.|
|JRC Directorate:||Nuclear Safety and Security|
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