TY - JOUR
T1 - Longitudinal Neutron Resonance Spin Echo Spectroscopy under Large Energy Transfers
AU - Franz, C.
AU - Soltwedel, O.
AU - Saübert, S.
AU - Wendl, A.
AU - Gottwald, W.
AU - Haslbeck, F.
AU - Spitz, L.
AU - Pfleiderer, C.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/12/11
Y1 - 2019/12/11
N2 - Longitudinal neutron resonance spin echo (LNRSE) spectroscopy offers very high energy resolution due to the self correction of the resonant spin flippers, and a wide dynamical range nominally exceeding six orders of magnitude in resolution down to sub-ps range. In this paper, the technical realisation how to achieve such low Fourier times at the spectrometer RESEDA at the MLZ Garching is described. The requirements of data collection and data analysis in the limit of very low Fourier times, notably those related to the breakdown of the spin echo approximation, are discussed. A method to infer the scattering function from the experimental data under large energy tansfers beyond the spin echo approximation is presented.
AB - Longitudinal neutron resonance spin echo (LNRSE) spectroscopy offers very high energy resolution due to the self correction of the resonant spin flippers, and a wide dynamical range nominally exceeding six orders of magnitude in resolution down to sub-ps range. In this paper, the technical realisation how to achieve such low Fourier times at the spectrometer RESEDA at the MLZ Garching is described. The requirements of data collection and data analysis in the limit of very low Fourier times, notably those related to the breakdown of the spin echo approximation, are discussed. A method to infer the scattering function from the experimental data under large energy tansfers beyond the spin echo approximation is presented.
UR - http://www.scopus.com/inward/record.url?scp=85078434553&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1316/1/012005
DO - 10.1088/1742-6596/1316/1/012005
M3 - Conference article
AN - SCOPUS:85078434553
SN - 1742-6588
VL - 1316
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012005
T2 - 12th International Conference on Polarised Neutrons for Condensed Matter Investigations, PNCMI 2018
Y2 - 3 July 2018 through 6 July 2018
ER -