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@ARTICLE{Vgl:1006599,
author = {Vögl, F. and Balacescu, L. and Holderer, O. and Pasini, S.
and Staringer, S. and Brandl, G. and Ossovyi, V. and
Feilbach, H. and Müller-Buschbaum, P. and Stadler, A. M.
and Fitter, J. and Schrader, T. E.},
title = {{M}ulti-angle in situ dynamic light scattering at a neutron
spin echo spectrometer},
journal = {Review of scientific instruments},
volume = {94},
number = {3},
issn = {0034-6748},
address = {[Erscheinungsort nicht ermittelbar]},
publisher = {American Institute of Physics},
reportid = {FZJ-2023-01740},
pages = {034106},
year = {2023},
abstract = {A new sample environment, called Bio-Oven, has been built
for the Neutron Spin Echo (NSE) SpectrometerJ-NSE Phoenix.
It provides active temperature control and the possibility
to perform Dynamic Light Scattering(DLS) measurements during
the neutron measurement. DLS provides diffusion coefficients
of the dissolvednanoparticles and thus one can monitor the
aggregation state of the sample on a time scale of minutes
duringthe spin echo measurement times on the order of days.
This approach helps to validate the NSE data or toreplace
the sample when its aggregation state influences the spin
echo measurement results. The new Bio-Ovenis an in situ DLS
setup based on optical fibers decoupling the free space
optics around the sample cuvettein a lightproof casing from
the laser sources and the detectors. It collects light from
three scattering anglessimultaneously. Six different values
of momentum transfer can be accessed by switching between
two differentlaser colors. Test experiments were performed
with silica nanoparticles with diameters ranging from 20 nm
upto 300 nm. Their hydrodynamic radii were determined from
DLS measurements and compared with the onesobtained by a
commercial particle sizer. It was demonstrated that also the
static light scattering signal can beprocessed and gives
meaningful results. The protein sample apomyoglobin was used
for a long-term test and ina first neutron measurement using
the new Bio-Oven. The results prove that the aggregation
state of the samplecan be followed using in situ DLS along
with the neutron measurement.},
cin = {JCNS-FRM-II / JCNS-1 / JCNS-4 / MLZ / ER-C-3},
ddc = {620},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-4-20201012 /
I:(DE-588b)4597118-3 / I:(DE-Juel1)ER-C-3-20170113},
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)J-NSE-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {37012783},
UT = {WOS:000956161100002},
doi = {10.1063/5.0136367},
url = {https://juser.fz-juelich.de/record/1006599},
}