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Li, Fankang (author), Shen, Jiazhou (author), Parnell, S. (author), Thaler, Alex N. (author), Matsuda, Masaaki (author), Keller, Thomas (author), Delaire, Olivier (author), Pynn, Roger (author), Fernandez-Baca, Jaime A. (author)
The energy resolution of the conventional way of measuring a small change in a phonon dispersion curve using neutron scattering is restricted by the relatively coarse intrinsic resolution ellipsoid of the neutron triple-axis spectrometer (TAS). By implementing inelastic neutron spin echo on the host TAS using the Larmor precession of the...
journal article 2019
document
Li, Fankang (author), Parnell, S. (author), Dalgliesh, Robert M. (author), Washington, Adam (author), Plomp, J. (author), Pynn, Roger (author)
To investigate long length scale structures using neutron scattering, real space techniques have shown certain advantages over the conventional methods working in reciprocal space. As one of the real space measurement techniques, spin echo modulated small angle neutron scattering (SEMSANS) has attracted attention, due to its relaxed...
journal article 2019
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Li, Fankang (author), Feng, Hao (author), Parnell, S. (author), Crow, Lowell (author), Matsuda, Masaaki (author), Ye, Feng (author), Kimura, Tsuyoshi (author), Fernandez-Baca, Jaime (author), Pynn, Roger (author), Thaler, Alexander N. (author)
journal article 2018
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Li, Fankang (author), Feng, Hao (author), Thaler, Alexander N. (author), Parnell, S. (author), Hamilton, William A. (author), Crow, Lowell (author), Yang, Wencao (author), Jones, Amy B. (author), Bai, Hongyu (author), Matsuda, Masaaki (author), Baxter, David V. (author), Keller, Thomas (author), Fernandez-Baca, Jaime A. (author), Pynn, Roger (author)
The neutron Larmor diffraction technique has been implemented using superconducting magnetic Wollaston prisms in both single-arm and double-arm configurations. Successful measurements of the coefficient of thermal expansion of a single-crystal copper sample demonstrates that the method works as expected. The experiment involves a new method of...
journal article 2017
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Parnell, S. (author), Washington, A.L. (author), Parnell, A.J. (author), Walsh, A (author), Dalgliesh, RM (author), Li, F (author), Hamilton, W.A. (author), Prevost, S (author), fairclough, J.P.A. (author), Pynn, R (author)
Stöber silica particles are used in a diverse range of applications. Despite their widespread industrial and scientific uses, information on the internal structure of the particles is non-trivial to obtain and is not often reported. In this work we have used spin-echo small angle neutron scattering (SESANS) in conjunction with ultra small angle...
journal article 2016
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