Nuclear Spin-Kinetics of 3He in Carbonizates with Various Porosity

Nuclear Spin-Kinetics of 3He in Carbonizates with Various Porosity

In the present work the NMR relaxation of the gaseous 3He inside carbonizate pores was investigated at temperature 1.5 K. The carbonizates synthesized from fructose and wood of the tropical tree astronium were used. The dependences of the 3He relaxation rates T1 and T2 on the gas pressure and the am...

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Veröffentlicht in:Journal of low temperature physics 2007-09, Vol.148 (5-6), p.815-819
Hauptverfasser: Tagirov, M. S., Yudin, A. N., Mamin, G. V., Rodionov, A. A., Tayurskii, D. A., Klochkov, A. V., Belford, R. L., Ceroke, P. J., Odintsov, B. M.
Format: Artikel
Sprache:eng
Schlagworte:
Gas pressure
Low temperature physics
NMR
Nuclear magnetic resonance
Nuclear spin
Porosity
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Zusammenfassung:In the present work the NMR relaxation of the gaseous 3He inside carbonizate pores was investigated at temperature 1.5 K. The carbonizates synthesized from fructose and wood of the tropical tree astronium were used. The dependences of the 3He relaxation rates T1 and T2 on the gas pressure and the amount of the 3He atoms adsorbed on the surface of pore walls were measured. The analysis of obtained results reveals the existence of the 3He phases inside carbonizate—adsorbed solid layers, liquid and gas.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-007-9437-3