Optimizing 129Xe and 131Xe relaxation in an NMR gyroscope using buffer gas pressure and wall coating.
J Magn Reson
; 352: 107430, 2023 Jul.
Article
em En
| MEDLINE
| ID: mdl-37141801
ABSTRACT
The accuracy of inertial measurement performed by the nuclear magnetic resonance gyroscope (NMRG) with two isotopes depends on the duration of transverse relaxation. Extending the relaxation of the xenon isotopes at the same time plays a very important role in the accuracy of gyro. The relaxation time of 129Xe and 131Xe can be increased to about 15-20 s by optimizing the buffer gas pressure of N2 at about 0.57 amg and coating RbH, respectively. According to the results of theoretical analysis and experimentation, the gyro stability reaches 0.6°/h, and the active measurement volume is 3 × 3 × 3 â¼ mm3.
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MEDLINE
Assunto principal:
Isótopos de Xenônio
/
Imageamento por Ressonância Magnética
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article