TY  - JOUR
AU  - Arend, N.
AU  - Häußler, W.
TI  - A quantum-mechanical description of Rotating Field Spin Echo
JO  - epl
VL  - 96
SN  - 0302-072X
CY  - Les Ulis
PB  - EDP Sciences
M1  - PreJuSER-19541
SP  - 42001
PY  - 2011
N1  - This research has been supported by the European Commission under the 6th Framework Programme through the Key Action: Strengthening the European Research Area, Research Infrastructures, Contract No: RII3-CT-2003-505925.
AB  - Neutron Spin Echo (NSE) is a technique for quasi-elastic neutron scattering with very high energy resolution. The latter is achieved by comparing the Larmor precession angles of a polarized neutron beam in two well-known magnetic fields before and after scattering in a sample. This "spin encoding" or "Larmor labeling" can be implemented by different technical methods, the most established variants being conventional NSE and Neutron Resonance Spin Echo (NRSE). In this publication we discuss Rotating Field Spin Echo (RFSE), a technique for measurements in the low-resolution domain. The analogy to NRSE is demonstrated by deriving the working principle using the quantum-mechanical method of time-evolution operators, a technique that was developed for NRSE in previous publications. Furthermore, we give an estimation of the inherent upper frequency limit of RFSE based on our theory. Copyright (C) EPLA, 2011
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000297322500018
DO  - DOI:10.1209/0295-5075/96/42001
UR  - https://juser.fz-juelich.de/record/19541
ER  -