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2023_JPhyCheLet_RealTime_MarcoI_posprint.pdf (2.16 MB)

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2023-01-30

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/206206

Real-Time Polarimetry of Hyperpolarized 13C Nuclear Spins Using an Atomic Magnetometer

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Recurs relacionat

https://doi.org/10.1021/acs.jpclett.2c03864

Resum

We introduce a method for nondestructive quantification of nuclear spin polarization, of relevance to hyperpolarized spin tracers widely used in magnetic resonance from spectroscopy to in vivo imaging. In a bias field of around 30 nT we use a high-sensitivity miniaturized 87Rb-vapor magnetometer to measure the field generated by the sample, as it is driven by a windowed dynamical decoupling pulse sequence that both maximizes the nuclear spin lifetime and modulates the polarization for easy detection. We demonstrate the procedure applied to a 0.08 M hyperpolarized [1-13C]-pyruvate solution produced by dissolution dynamic nuclear polarization, measuring polarization repeatedly during natural decay at Earth's field. Application to real-time and continuous quality monitoring of hyperpolarized substances is discussed.

Matèries

Ressonància magnètica, Spin (Física nuclear)

Matèries (anglès)

Magnetic resonance, Nuclear spin

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Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC))

Citació

MOULOUDAKIS, K., et al. Real-Time Polarimetry of Hyperpolarized 13C Nuclear Spins Using an Atomic Magnetometer. Journal Of Physical Chemistry Letters. 2023. Vol. 14, num. 5, pags. 1192-1197. ISSN 1948-7185. [consulted: 19 of September of 2026]. Available at: https://hdl.handle.net/2445/206206

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