Zobrazeno 1 - 10
of 29 961
pro vyhledávání: '"NUCLEAR-POLARIZATION"'
Autor:
Vaneeckhaute, Ewoud, Bocquelet, Charlotte, Rougier, Nathan, Jegadeesan, Shebha Anandhi, Vinod-Kumar, Sanjay, Mathies, Guinevere, Melzi, Roberto, Kempf, James, Stern, Quentin, Jannin, Sami
A sensitivity increase of two orders of magnitude in proton (1H) and carbon (13C) spins via dynamic nuclear polarization (DNP) has been accomplished recently using a compact benchtop DNP polarizer operating at 1 T and 77 K. However the DNP mechanisms
Externí odkaz:
http://arxiv.org/abs/2412.10325
Dynamic Nuclear Polarization (DNP) is transforming NMR and MRI by significantly enhancing sensitivity through the transfer of polarization from electron spins to nuclear spins via microwave irradiation. However, the use of monochromatic continuous-wa
Externí odkaz:
http://arxiv.org/abs/2410.19170
There is renewed interest in studies of muonic atoms, which may provide detailed information on nuclear structure. A major limiting factor in the interpretation of measurements is the nuclear polarization contribution. We propose a method to determin
Externí odkaz:
http://arxiv.org/abs/2408.16516
It is demonstrated that the time evolution of the electron-nuclear polarization transfer process during pulsed dynamic nuclear polarization (DNP) can be reversed on a microsecond timescale, leading to the observation of DNP echoes. The DNP echoes are
Externí odkaz:
http://arxiv.org/abs/2406.18246
Akademický článek
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Akademický článek
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Autor:
von Witte, Gevin, Himmler, Aaron, Hyppönen, Viivi, Jäntti, Jiri, Albannay, Mohammed M., Moilanen, Jani O., Ernst, Matthias, Lehto, Vesa-Pekka, Riikonen, Joakim, Kozerke, Sebastian, Kettunen, Mikko I., Tamarov, Konstantin
Si nanoparticles (NPs) have been actively developed as a hyperpolarized magnetic resonance imaging (MRI) contrast agent with an imaging window close to one hour. However, the progress in the development of NPs has been hampered by the incomplete unde
Externí odkaz:
http://arxiv.org/abs/2401.08320
Autor:
Valuev, Igor A., Oreshkina, Natalia S.
The nuclear-polarization corrections to the energy levels of highly charged ions are systematically investigated to leading order in the fine-structure constant. To this end, the notion of effective photon propagators with nuclear-polarization insert
Externí odkaz:
http://arxiv.org/abs/2401.05904
Autor:
Alex van der Ham
Publikováno v:
Journal of Magnetic Resonance Open, Vol 21, Iss , Pp 100160- (2024)
Liquid-state Overhauser Dynamic Nuclear Polarization (ODNP) is an emerging technique, aimed at shortening NMR experiment times. It achieves this by increasing the otherwise poor nuclear polarization at room temperature, by polarization transfer from
Externí odkaz:
https://doaj.org/article/37822bae8a744116a122399ffb1d0cd0
