Gast ::
| Hauptseite > Publikationsdatenbank > Modeling of H/D isotope-exchange in crystalline beryllium > print |
| Hauptseite > Publikationsdatenbank > Modeling of H/D isotope-exchange in crystalline beryllium > print |
| 001 | 862841 | ||
| 005 | 20240711113806.0 | ||
| 024 | 7 | _ | |a 10.1016/j.nme.2019.100682 |2 doi |
| 024 | 7 | _ | |a 2128/22208 |2 Handle |
| 024 | 7 | _ | |a WOS:000500930800016 |2 WOS |
| 037 | _ | _ | |a FZJ-2019-03040 |
| 082 | _ | _ | |a 624 |
| 100 | 1 | _ | |a Matveev, D. |0 P:(DE-Juel1)8998 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Modeling of H/D isotope-exchange in crystalline beryllium |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2019 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1558428219_22401 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a A reaction-diffusion model with surface occupation dependent desorption [D. Matveev et al., Nucl. Instr. Meth. B 430 (2018) 23–30] has been updated to handle multiple hydrogen species to simulate hydrogen/deuterium isotope-exchange experiments performed on polycrystalline beryllium samples under ultra-high vacuum laboratory conditions. In the experiments subsequent exposures of a sample to hydrogen and deuterium ion beams in direct and reverse implantation order were followed by thermal desorption spectroscopy measurements under a constant heating rate of 0.7 K/s. The recorded signals of masses 2 to 4 (H2, HD and D2) indicate that the second implanted isotope dominates clearly the low temperature release stage ( ≈ 450 K), while both isotopes show a comparable contribution to the high temperature desorption stage ( ≈ 700 K) with only minor effect of the implantation order attributed to a slightly deeper penetration of deuterium compared to hydrogen. Simulations of the implantation and subsequent thermal desorption of hydrogen isotopes are performed to assess the atomic processes behind the isotope-exchange. Simulations were performed under the assumption that the low temperature release stage is attributed to hydrogen/deuterium atoms retained on effective open surfaces (e.g. interconnected porosity) represented in the simulations by a surface with an effective surface area exceeding the nominal exposed surface area by a factor up to 100. Kinetic de-trapping from vacancies with multiple trapping levels and enhanced desorption at surface coverages close to saturation are addressed in the model as possible mechanisms promoting the isotope-exchange. Simulation results suggest the applicability of the model to describe isotope-exchange processes in crystalline beryllium and give a qualitative explanation of the observed experimental facts. |
| 536 | _ | _ | |a 174 - Plasma-Wall-Interaction (POF3-174) |0 G:(DE-HGF)POF3-174 |c POF3-174 |f POF III |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef |
| 700 | 1 | _ | |a Hansen, P. |0 P:(DE-Juel1)164146 |b 1 |u fzj |
| 700 | 1 | _ | |a Dittmar, T. |0 P:(DE-Juel1)158050 |b 2 |u fzj |
| 700 | 1 | _ | |a Koslowski, H. R. |0 P:(DE-Juel1)130066 |b 3 |u fzj |
| 700 | 1 | _ | |a Linsmeier, Ch. |0 P:(DE-Juel1)157640 |b 4 |u fzj |
| 773 | _ | _ | |a 10.1016/j.nme.2019.100682 |g Vol. 20, p. 100682 - |0 PERI:(DE-600)2808888-8 |p 100682 - |t Nuclear materials and energy |v 20 |y 2019 |x 2352-1791 |
| 856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/862841/files/1-s2.0-S2352179118302655-main.pdf |
| 856 | 4 | _ | |y OpenAccess |x pdfa |u https://juser.fz-juelich.de/record/862841/files/1-s2.0-S2352179118302655-main.pdf?subformat=pdfa |
| 909 | C | O | |o oai:juser.fz-juelich.de:862841 |p openaire |p open_access |p VDB |p driver |p dnbdelivery |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 0 |6 P:(DE-Juel1)8998 |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 1 |6 P:(DE-Juel1)164146 |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 2 |6 P:(DE-Juel1)158050 |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 3 |6 P:(DE-Juel1)130066 |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 4 |6 P:(DE-Juel1)157640 |
| 913 | 1 | _ | |a DE-HGF |l Kernfusion |1 G:(DE-HGF)POF3-170 |0 G:(DE-HGF)POF3-174 |2 G:(DE-HGF)POF3-100 |v Plasma-Wall-Interaction |x 0 |4 G:(DE-HGF)POF |3 G:(DE-HGF)POF3 |b Energie |
| 914 | 1 | _ | |y 2019 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0200 |2 StatID |b SCOPUS |
| 915 | _ | _ | |a Creative Commons Attribution CC BY 4.0 |0 LIC:(DE-HGF)CCBY4 |2 HGFVOC |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0501 |2 StatID |b DOAJ Seal |
| 915 | _ | _ | |a WoS |0 StatID:(DE-HGF)0112 |2 StatID |b Emerging Sources Citation Index |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0500 |2 StatID |b DOAJ |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0150 |2 StatID |b Web of Science Core Collection |
| 915 | _ | _ | |a OpenAccess |0 StatID:(DE-HGF)0510 |2 StatID |
| 915 | _ | _ | |a Peer Review |0 StatID:(DE-HGF)0030 |2 StatID |b DOAJ : Peer review |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0199 |2 StatID |b Clarivate Analytics Master Journal List |
| 920 | _ | _ | |l yes |
| 920 | 1 | _ | |0 I:(DE-Juel1)IEK-4-20101013 |k IEK-4 |l Plasmaphysik |x 0 |
| 980 | 1 | _ | |a FullTexts |
| 980 | _ | _ | |a journal |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a UNRESTRICTED |
| 980 | _ | _ | |a I:(DE-Juel1)IEK-4-20101013 |
| 981 | _ | _ | |a I:(DE-Juel1)IFN-1-20101013 |
| Library | Collection | CLSMajor | CLSMinor | Language | Author |
|---|