%0 Journal Article
%A Ioffe, A.
%T Spin-echo technique with time-gradient magnetic fields for small-angle neutron scattering and reflectometry
%J Nuclear instruments & methods in physics research / A
%V 634
%@ 0168-9002
%C Amsterdam
%I North-Holland Publ. Co.
%M PreJuSER-20152
%P S55 - S58
%D 2011
%Z Record converted from VDB: 12.11.2012
%X A new neutron spin-echo technique based on the use of time-gradient magnetic fields, TGF NSE, can be used for purposes of small-angle neutron scattering and reflectometry. It employs linearly rising magnetic fields that can be created in simple solenoids or thin magnetic foils, thus allowing for a construction of long spin turners that can be tilted to rather small incident angles as required for high-resolution angular measurements. However, in contrast with the use of static or radio-frequency magnetic fields as in the well-known SESANS, the use of time-gradient magnetic fields results in the unusual dependence of the spin-echo length on neutron wavelength-lambda(3) rather than lambda(2). This allows for a significantly higher Q-resolution and for a very significant increase of Q-range with the latter feature especially valuable for the time-of-flight operation mode with pulsed neutron sources. We will consider the TGF spin-echo small-angle neutron scattering/reflectometer setup in detail and compare its parameters with those of the state-of-the-art SESANS instrument OFFSPEC at ISIS. (C) 2010 Elsevier B.V. All rights reserved.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000290355100012
%R 10.1016/j.nima.2010.05.028
%U https://juser.fz-juelich.de/record/20152