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 JEANMAGILL JOSEPHCLARK 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
Publication Year: 2005
JRC N°: JRC30457
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30457
Type: Articles in Journals
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 Institute:Institute for Transuranium Elements

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