A novel experimental setup for energy loss and charge state measurements in dense moderately coupled plasma using laser-heated hohlraum targets

8th International Conference on Inertial Fusion Sciences and Applications

Ortner, A.^1,8 ; Schumacher, D.^3 ; Cayzac, W.^1,4 ; Frank, A.^5 ; Basko, M.M.^2 ; Bedacht, S.^1 ; Blazevic, A.^3 ; Faik, S.^6 ; Kraus, D.^1,7 ; Rienecker, T.^6 ; Schaumann, G.^1 ; Tauschwitz, An.^6,8 ; Wagner, F.^1 ; Roth, M.^1

Technische Universität Darmstadt, Darmstadt, Germany^1

Keldysh Institute of Applied Mathematics, Moscow, Russia^2

GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany^3

Univ. Bordeaux-CEA-CNRS CELIA UMR 5107, Talence, France^4

Helmholtzinstitut Jena, Jena, Germany^5

Goethe-Universität Frankfurt, Frankfurt, Germany^6

University of California, Berkeley, United States^7

Helmholtz International Center for FAIR (HIC for FAIR), Frankfurt, Germany^8

关键词: Carbon plasmas;    Hohlraum targets;    Interaction Path;    Ion energy loss;    Loss measurement;    Nonideal plasma;    Solid-state density;    Submillimeters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012081/pdf
DOI  :  10.1088/1742-6596/688/1/012081

来源: IOP

【 摘 要 】

We report on a new experimental setup for ion energy loss measurements in dense moderately coupled plasma which has recently been developed and tested at GSI Darmstadt. A partially ionized, moderately coupled carbon plasma (ne≤ 0.8• 1022cm-3, Te= 15 eV, z = 2.5, Γ = 0.5) is generated by volumetrical heating of two thin carbon foils with soft X-rays. This plasma is then probed by a bunched heavy ion beam. For that purpose, a special double gold hohlraum target of sub-millimeter size has been developed which efficiently converts intense laser light into thermal radiation and guarantees a gold-free interaction path for the ion beam traversing the carbon plasma. This setup allows to do precise energy loss measurements in non-ideal plasma at the level of 10 percent solid-state density.