Diffusion damping during adiabatic z-rotation pulses for NMR spectroscopy in inhomogeneous magnetic fields
(2006) In Journal of Chemical Physics 125(4).- Abstract
- High-resolution nuclear magnetic resonance spectra from samples located in inhomogeneous static and radio frequency magnetic fields can be obtained by applying a train of z-rotation radio frequency pulses to repeatedly refocus the inhomogeneous broadening during signal detection. z-rotation pulses based on an adiabatic double passage are effective over wide bandwidths using a limited amount of radio frequency power at the expense of being time consuming and, consequently, sensitive to motion of the spin bearing molecules. The signal damping resulting from molecular self-diffusion during the pulse was studied experimentally and using Brownian dynamics simulations. The results show that the analytical expression for diffusion damping during... (More)
- High-resolution nuclear magnetic resonance spectra from samples located in inhomogeneous static and radio frequency magnetic fields can be obtained by applying a train of z-rotation radio frequency pulses to repeatedly refocus the inhomogeneous broadening during signal detection. z-rotation pulses based on an adiabatic double passage are effective over wide bandwidths using a limited amount of radio frequency power at the expense of being time consuming and, consequently, sensitive to motion of the spin bearing molecules. The signal damping resulting from molecular self-diffusion during the pulse was studied experimentally and using Brownian dynamics simulations. The results show that the analytical expression for diffusion damping during a double spin echo is a reasonable approximation for the signal decay during an adiabatic z-rotation pulse. Methods to alleviate the effects of diffusion are discussed. (c) 2006 American Institute of Physics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/399120
- author
- Topgaard, Daniel LU and Sakellariou, Dimitris
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 125
- issue
- 4
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000239423600025
- scopus:33746841361
- ISSN
- 0021-9606
- DOI
- 10.1063/1.2219438
- language
- English
- LU publication?
- yes
- id
- 4919efed-1874-4c1c-909c-b13dd408e65b (old id 399120)
- date added to LUP
- 2016-04-01 12:27:31
- date last changed
- 2022-01-27 05:21:04
@article{4919efed-1874-4c1c-909c-b13dd408e65b,
abstract = {{High-resolution nuclear magnetic resonance spectra from samples located in inhomogeneous static and radio frequency magnetic fields can be obtained by applying a train of z-rotation radio frequency pulses to repeatedly refocus the inhomogeneous broadening during signal detection. z-rotation pulses based on an adiabatic double passage are effective over wide bandwidths using a limited amount of radio frequency power at the expense of being time consuming and, consequently, sensitive to motion of the spin bearing molecules. The signal damping resulting from molecular self-diffusion during the pulse was studied experimentally and using Brownian dynamics simulations. The results show that the analytical expression for diffusion damping during a double spin echo is a reasonable approximation for the signal decay during an adiabatic z-rotation pulse. Methods to alleviate the effects of diffusion are discussed. (c) 2006 American Institute of Physics.}},
author = {{Topgaard, Daniel and Sakellariou, Dimitris}},
issn = {{0021-9606}},
language = {{eng}},
number = {{4}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Chemical Physics}},
title = {{Diffusion damping during adiabatic z-rotation pulses for NMR spectroscopy in inhomogeneous magnetic fields}},
url = {{http://dx.doi.org/10.1063/1.2219438}},
doi = {{10.1063/1.2219438}},
volume = {{125}},
year = {{2006}},
}