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@ARTICLE{Jochum:907749,
author = {Jochum, J. K. and Spitz, L. and Franz, C. and Wendl, A. and
Leiner, J. C. and Pfleiderer, C. and Soltwedel, O.},
title = {{O}ptimized signal deduction procedure for the {MIEZE}
spectroscopy technique},
journal = {Journal of applied crystallography},
volume = {55},
number = {1},
issn = {0021-8898},
address = {[S.l.]},
publisher = {Wiley-Blackwell},
reportid = {FZJ-2022-02191},
pages = {14 - 20},
year = {2022},
abstract = {A method is reported to determine the phase and amplitude
of sinusoidally modulated event rates, binned into four bins
per oscillation, based on data generated at the resonant
neutron spin-echo spectrometer RESEDA at FRM-II. The
presented algorithm relies on a reconstruction of the
unknown parameters. It omits a calculation-intensive fitting
procedure and avoids contrast reduction due to averaging
effects. It allows the current data acquisition bottleneck
at RESEDA to be relaxed by a factor of four and thus
increases the potential time resolution of the detector by
the same factor. The approach is explained in detail and
compared with the established fitting procedures of time
series having four and 16 time bins per oscillation. In
addition the empirical estimates of the errors of the three
methods are presented and compared with each other. The
reconstruction is shown to be unbiased, asymptotic and
efficient for estimating the phase. Reconstructing the
contrast increases the error bars by roughly $10\%$ as
compared with fitting 16 time-binned oscillations. Finally,
the paper gives heuristic, analytical equations to estimate
the error for phase and contrast as a function of their
initial values and counting statistics.},
cin = {JCNS-FRM-II / MLZ / JCNS-4},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-4-20201012},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 623 - Data Management and Analysis (POF4-623)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-623},
experiment = {EXP:(DE-MLZ)RESEDA-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {35145354},
UT = {WOS:000749998900002},
doi = {10.1107/S1600576721011936},
url = {https://juser.fz-juelich.de/record/907749},
}