Temperature and structure measurements of heavy-ion-heated diamond using in situ X-ray diagnosticsOA
Temperature and structure measurements of heavy-ion-heated diamond using in situ X-ray diagnostics
We present in situ measurements of spectrally resolved X-ray scattering and X-ray diffraction from monocrystalline diamond samples heated with an intense pulse of heavy ions.In this way,we determine the samples'heating dynamics and their microscopic and macroscopic structural integrity over a timespan of several microseconds.Connecting the ratio of elastic to inelastic scattering with state-of-the-art density functional theory molecular dynamics simulations allows the inference of average temperatures around 1300 K,in agreement with predictions from stopping power calculations.The simultaneous diffraction measurements show no hints of any volumetric graphitization of the material,but do indicate the onset of fracture in the diamond sample.Our experiments pave the way for future studies at the Facility for Antiproton and Ion Research,where a substantially increased intensity of the heavy ion beam will be available.
J.Lütgert;B.Lindqvist;C.Qu;R.Redmer;D.Riley;G.Schaumann;S.Schumacher;A.Tauschwitz;D.Varentsov;K.Weyrich;X.Yu;P.Hesselbach;B.Zielbauer;Zs.Major;P.Neumayer;D.Kraus;M.Schörner;V.Bagnoud;R.Belikov;P.Drechsel;B.Heuser;O.S.Humphries;P.Katrik
Institut für Physik,Universität Rostock,Albert-Einstein-Str.23,18059 Rostock,GermanyCentre for Plasma Physics,School of Mathematics and Physics,Queen's University Belfast,University Road,Belfast BT7 1NN,United KingdomInstitut für Kernphysik,Technische Universität Darmstadt,Schlossgartenstr.9,64289 Darmstadt,GermanyGSI Helmholtzzentrum für Schwerionenforschung,Planckstr.1,64291 Darmstadt,GermanyGSI Helmholtzzentrum für Schwerionenforschung,Planckstr.1,64291 Darmstadt,Germany||State Key Laboratory of Nuclear Physics and Technology,Institute of Heavy Ion Physics,Peking University,Beijing 100871,ChinaGSI Helmholtzzentrum für Schwerionenforschung,Planckstr.1,64291 Darmstadt,Germany||Institut für Angewandte Physik,Goethe-Universität Frankfurt am Main,Max-von-Laue-Str.1,60438 Frankfurt am Main,GermanyGSI Helmholtzzentrum für Schwerionenforschung,Planckstr.1,64291 Darmstadt,Germany||Helmholtz Institut Jena,Fröbelstieg 3,07743 Jena,GermanyInstitut für Physik,Universität Rostock,Albert-Einstein-Str.23,18059 Rostock,Germany||Helmholtz-Zentrum Dresden-Rossendorf,Bautzner Landstr.400,01328 Dresden,GermanyInstitut für Geowissenschaften,Goethe-Universität Frankfurt am Main,Altenhöferallee 1,60438 Frankfurt am Main,GermanyHelmholtz-Zentrum Dresden-Rossendorf,Bautzner Landstr.400,01328 Dresden,Germany||European XFEL GmbH,Holzkoppel 4,22869 Schenefeld,Germany
《极端条件下的物质与辐射（英文）》 2024 (004)
80-89 / 10
The results presented here are based on experiment S489 per-formed at the HHT target station in the context of FAIR Phase-0 at GSI,Darmstadt(Germany).J.L.and D.K.were supported by GSI Helmholtzzentrum für Schwerionenforschung,Darmstadt as part of the R&D project SI-Grant No.URDK2224 with the University of Rostock.M.S.and R.R.acknowledge support by the Deutsche Forschungsgemeinschaft(DFG)within the Research Unit FOR 2440.The ab initio calculations were performed at the North-German Supercomputing Alliance(HLRN)facilities.R.B.acknowledges support by the Federal Ministry of Education and Research(BMBF)under Grant No.05P21RFFA2.O.S.H.and D.K.were supported by the Helmholtz Association under Grant No.ERC-RA-0041.
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