Pulsed spin-locking of spin-3/2 nuclei: 39 K-NQR of potassium chlorate
A model was developed for predicting a locked signal under a series of refocusing pulses for Nuclear Quadrupole Resonance (NQR) of spin I=32 and tested with a powder of KClO . This work represents the first direct NQR detection of the K line of potassium chlorate. The characteristic time constants,...
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| Published in | Journal of magnetic resonance (1997) Vol. 335; p. 107145 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.02.2022
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A model was developed for predicting a locked signal under a series of refocusing pulses for Nuclear Quadrupole Resonance (NQR) of spin I=32 and tested with a powder of KClO
. This work represents the first direct NQR detection of the
K line of potassium chlorate. The characteristic time constants, T
,T
and T
, were measured to determine the detectability of potassium chlorate via
K-NQR. The echo train T
was found to be strongly dependent on the refocusing pulse-spacing and weakly dependent on the refocusing pulse strength. The optimal angles of the excitation and echo pulse for a pulse train were also determined, as well as, the resonance-frequency dependence on sample temperature. |
|---|---|
| AbstractList | A model was developed for predicting a locked signal under a series of refocusing pulses for Nuclear Quadrupole Resonance (NQR) of spin I=32 and tested with a powder of KClO
. This work represents the first direct NQR detection of the
K line of potassium chlorate. The characteristic time constants, T
,T
and T
, were measured to determine the detectability of potassium chlorate via
K-NQR. The echo train T
was found to be strongly dependent on the refocusing pulse-spacing and weakly dependent on the refocusing pulse strength. The optimal angles of the excitation and echo pulse for a pulse train were also determined, as well as, the resonance-frequency dependence on sample temperature. |
| Author | Nixon, Kyle Edward Sauer, Karen L |
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| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/35078010$$D View this record in MEDLINE/PubMed |
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| Keywords | Spin-3/2 Spin-echo decay Zero-field NMR Pulse sequences Potassium chlorate Nuclear quadrupole resonance Spin-lattice relaxation time Quadrupolar nuclei Half-integer quadrupoles Powder sample |
| Language | English |
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| Snippet | A model was developed for predicting a locked signal under a series of refocusing pulses for Nuclear Quadrupole Resonance (NQR) of spin I=32 and tested with a... |
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| Title | Pulsed spin-locking of spin-3/2 nuclei: 39 K-NQR of potassium chlorate |
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