This title appears in the Scientific Report :
2001
Please use the identifier:
http://dx.doi.org/10.1016/S0009-2614(01)01106-X in citations.
Proton magnetization enhancement of solvents with hyperpolarized xenon in very low-magnetic fields
Proton magnetization enhancement of solvents with hyperpolarized xenon in very low-magnetic fields
The polarization transfer between hyperpolarized xenon (Xe) and the protons (H) of different solutes at very low magnetic fields ranging from 0.001 to 0.014 T is reported. Due to Xe-H cross-relaxation (Spin Polarized Induced Nuclear Overhauser Effect (SPINOE)) the observed proton NMR signal of liqui...
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Personal Name(s): | Appelt, S. |
---|---|
Häsing, F. W. / Bär-Lang, S. / Shah, J. N. / Blümich, B. | |
Contributing Institute: |
Zentralinstitut für Elektronik; ZEL Institut für Medizin; IME |
Published in: | Chemical physics letters, 348 (2001) |
Imprint: |
Amsterdam [u.a.]
Elsevier
2001
|
DOI: |
10.1016/S0009-2614(01)01106-X |
Document Type: |
Journal Article |
Research Program: |
Zerebrale Repräsentation Detektoren, Signal- und Bildverarbeitung für Neutronen-, Gamma- und Röntgenstrahlung |
Series Title: |
Chemical Physics Letters
348 |
Subject (ZB): | |
Publikationsportal JuSER |
The polarization transfer between hyperpolarized xenon (Xe) and the protons (H) of different solutes at very low magnetic fields ranging from 0.001 to 0.014 T is reported. Due to Xe-H cross-relaxation (Spin Polarized Induced Nuclear Overhauser Effect (SPINOE)) the observed proton NMR signal of liquid ethanol, butanol and toluene is enhanced at room temperature by a factor of 1000 in a field of B = 0.001 T. Smaller proton enhancement factors between 10 and 100 are measured for ethanol/water mixtures and for sunflower oil. Using high-field Xe NMR, the phase transitions of melting hyperpolarized Xe ice frozen onto the surface of ethanol ice is investigated. (C) 2001 Elsevier Science B.V. All rights reserved. |