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001     903489
005     20211214142137.0
037 _ _ |a FZJ-2021-05161
100 1 _ |a Katter, Janike
|0 P:(DE-Juel1)187589
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|e Corresponding author
|u fzj
245 _ _ |a Modellanpassung und Parameterschätzung für Forschung mit Neutronen
|f - 2021-09-28
260 _ _ |c 2021
300 _ _ |a 37 pages
336 7 _ |a bachelorThesis
|2 DRIVER
336 7 _ |a Thesis
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|2 EndNote
336 7 _ |a Output Types/Supervised Student Publication
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336 7 _ |a Bachelor Thesis
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|s 1639402911_28164
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336 7 _ |a MASTERSTHESIS
|2 BibTeX
336 7 _ |a SUPERVISED_STUDENT_PUBLICATION
|2 ORCID
500 _ _ |a There are many areas in the research with neutrons where model ttingand parameter estimation play a great role. Physical laws that are alreadyexplored, oer models that depend on dierent parameters. Those models canbe used for simulating an experiment, for example by specifying the parame-ters, or those models can be used for estimating the parameters by tting themodel to experimental data.In this work, two sub-areas of neutron research, each with a specic case ofmodel tting and parameter estimation, are examined in more detail.On the one hand, the calculation of the parameter uncertainties in the Levenberg-Marquardt algorithm is considered. The algorithm is used by the softwareSteca to t the data from neutron diraction to a model.Furthermore, the Dierential Evolution Algorithm is looked upon, which isconsidered to be added to the software BornAgain , a software for simulatingand tting X-ray and neutron reectometry, as a further algorithm for pa-rameter estimation. As BornAgain is programmed in C ++ , I discussed thepossibility of accessing the Python implementation of the Dierential Evolu-tion algorithm.
502 _ _ |a Bachelorarbeit, Hochschule für Angewandte Wissenschaften München, 2021
|c Hochschule für Angewandte Wissenschaften München
|b Bachelorarbeit
|d 2021
536 _ _ |a 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4)
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536 _ _ |a 632 - Materials – Quantum, Complex and Functional Materials (POF4-632)
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650 2 7 |a Instrument and Method Development
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650 1 7 |a Instrument and Method Development
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693 _ _ |0 EXP:(DE-MLZ)NOSPEC-20140101
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909 C O |o oai:juser.fz-juelich.de:903489
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910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
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913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Großgeräte: Materie
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|v Jülich Centre for Neutron Research (JCNS) (FZJ)
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913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l From Matter to Materials and Life
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914 1 _ |y 2021
920 _ _ |l yes
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920 1 _ |0 I:(DE-588b)4597118-3
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980 _ _ |a bachelor
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980 _ _ |a I:(DE-Juel1)JCNS-FRM-II-20110218
980 _ _ |a I:(DE-Juel1)JCNS-4-20201012
980 _ _ |a I:(DE-588b)4597118-3
980 _ _ |a UNRESTRICTED

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