Low‐temperature polarized helium‐3 for MRI applications | Zendy

Kober Frank | Zendy; Wolf PierreÉtienne | Zendy; Leviel JeanLouis | Zendy; Vermeulen Gérard | Zendy; Duhamel Guillaume | Zendy; Delon Antoine | Zendy; Derouard Jacques | Zendy; Décorps Michel | Zendy; Ziegler Anne | Zendy

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Low‐temperature polarized helium‐3 for MRI applications

Author(s) -

Kober Frank,

Wolf PierreÉtienne,

Leviel JeanLouis,

Vermeulen Gérard,

Duhamel Guillaume,

Delon Antoine,

Derouard Jacques,

Décorps Michel,

Ziegler Anne

Publication year - 1999

Publication title -

magnetic resonance in medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.696

H-Index - 225

eISSN - 1522-2594

pISSN - 0740-3194

DOI - 10.1002/(sici)1522-2594(199906)41:6<1084::aid-mrm2>3.0.co;2-4

Subject(s) - rubidium , nuclear magnetic resonance , relaxation (psychology) , magnet , liquid helium , coating , helium , materials science , chemistry , nuclear magnetic resonance spectroscopy , atomic physics , physics , nanotechnology , potassium , psychology , social psychology , quantum mechanics , metallurgy

The first 3 He nuclear magnetic resonance (NMR) experiments using low‐temperature prepolarization are presented. 3 He cells were polarized at 4.2 K and 4.7 T, transported to another magnet, heated to room temperature, and used for NMR experiments at 2.35 T. Cells with and without a rubidium coating were tested. In both cases, the NMR signal was greater than 100 times the thermal equilibrium signal. No evidence of a rubidium coating effect on the longitudinal relaxation time T 1 of 3 He (500 mbar) at 4.2 K could be demonstrated. NMR gradient‐echo images of the cells were acquired. Magn Reson Med 41:1084–1087, 1999. © 1999 Wiley‐Liss, Inc.

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