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@MASTERSTHESIS{Katter:903489,
author = {Katter, Janike},
title = {{M}odellanpassung und {P}arameterschätzung für
{F}orschung mit {N}eutronen},
school = {Hochschule für Angewandte Wissenschaften München},
type = {Bachelorarbeit},
reportid = {FZJ-2021-05161},
pages = {37 pages},
year = {2021},
note = {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.; Bachelorarbeit, Hochschule
für Angewandte Wissenschaften München, 2021},
cin = {JCNS-FRM-II / JCNS-4 / MLZ},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-4-20201012 / I:(DE-588b)4597118-3},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)2},
url = {https://juser.fz-juelich.de/record/903489},
}