Adiabatic homonuclear polarization transfer in magic-angle-spinning solid-state NMR1Presented in part at the 38th ENC conference, March 23–27, 1997, Orlando, Florida, USA.1

Autor: M. Nijman, Marc Baldus, J. W. M. van Os, Beat H. Meier, René Verel

Publikováno v: Chemical Physics Letters. 280:31-39

An adiabatic homonuclear polarization-transfer scheme is introduced. It involves an adiabatic passage through the rotational-resonance condition (APRR) experimentally realized by a ramp of the MAS speed. The APRR experiment is demonstrated to lead to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b834df6dfd1b1aa220c4cd0a4064ba6
https://doi.org/10.1016/s0009-2614(97)01093-2

Feasibility studies for the implementation of nuclear magnetic resonance in a 25T hybrid magnet

Autor: P.J.M. van Bentum, J. W. M. van Os, Jan C. Maan, Arno P. M. Kentgens

Publikováno v: International Journal of Modern Physics : B, Condensed Matter Physics, Statistical Physics, Applied Physics, 16, 22, pp. 3405-3405
International Journal of Modern Physics : B, Condensed Matter Physics, Statistical Physics, Applied Physics, 16, 3405-3405

As an exploratory study for NMR experiments in the future 20 MW Nijmegen high field magnet laboratory, the possibilities of field stabilization and field gradient compensation in a 25 T hybrid magnet in the present installation were evaluated. High f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb6d431b902b34948f5cfd66f2cdaa3c
https://hdl.handle.net/2066/76629

Time-Encoded Nuclear-Magnetic-Resonance Spectrometer Control

Autor: J. W. M. van Os, Arno P. M. Kentgens, J.W.G. Janssen

Publikováno v: Review of Scientific Instruments, 64, 11, pp. 3340-3341
Review of Scientific Instruments, 64, 3340-3341

A device is described that enables time control of many external devices on any nuclear magnetic resonance spectrometer even if it has only one control output available for switching external appliances. Furthermore, it allows activation of extra dev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::665cbc1bf57242d59d9828ec3437d2ef
https://hdl.handle.net/2066/76580

NMR images of rotating solids

Autor: Wiebren S. Veeman, J. W. M. van Os, David G. Cory

Publikováno v: Journal of Magnetic Resonance (1969). 76:543-547

It is demonstrated that NMR images may be obtained from solids rotating at the magic angle. This approach leads to line narrowing in favorable samples and is easily implemented. In very rigid systems it is suggested that imaging be performed with a c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::696fad64117aed0d05ebc8b682f529c9
https://doi.org/10.1016/0022-2364(88)90357-5

NMR images of rigid solids

Autor: J. W. M. van Os, A.m. Reichwein, Wiebren S. Veeman, David G. Cory

Publikováno v: Chemical Physics Letters. 143:467-470

The first two-dimensional 1H NMR image of a solid whose linewidth is not narrowed by motional averaging is presented. The image of a polyethylene phantom was acquired with line narrowing by multiple-pulse coherent averaging of the homonuclear dipolar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a951bc2726936af58f4a8098f40e6e41
https://doi.org/10.1016/0009-2614(88)87397-4