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- W1563232835 abstract "Optimum production and utilization of spin-polarized deuterium as a fusion fuel requires long nuclear spin-lattice relaxation times at temperatures near 4K. This can be achieved with very high purity ortho-D/sub 2/. We report new experimental methods and results of total-adsorption catalysis of D/sub 2/ para-ortho conversion in the 4 to 15K temperature region, using as catalysts activated alumina and partially-activated charcoal. Because of the strongly anisotropic adsorbate binding on alumina, the ortho-D/sub 2/ equilibrium concentration near 10 to 12K (where the conversion time is acceptable) is not high enough, and near 4K (where the equilibium ortho-D/sub 2/ concentration is satisfactory) the conversion time is almost prohibitively too long to permit achievement of the desired ortho-D/sub 2/ purity. Although doping alumina with paramagnetic ions could improve this situation, it would be at the expense of excessive back-conversion upon desorption." @default.
- W1563232835 created "2016-06-24" @default.
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- W1563232835 date "1985-03-26" @default.
- W1563232835 modified "2023-09-26" @default.
- W1563232835 title "Preparation and use of very pure o-D/sub 2/. Technical report No. 1" @default.
- W1563232835 hasPublicationYear "1985" @default.
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