Chemistry of inorganic compounds – Radioactive – Transuranium compound
Patent
1977-02-07
1978-08-08
Miller, Edward A.
Chemistry of inorganic compounds
Radioactive
Transuranium compound
423 19, 423250, 423258, 250424, 250531, 204164, C01G 4306, C01G 5600
Patent
active
041057465
ABSTRACT:
This invention relates to a novel method and a novel generator, or source, for providing gaseous negative ions of selected metal hexafluorides. The method is summarized as follows: in an evacuated zone, reacting gaseous fluorine with an actinide-metal body selected from the group consisting of uranium, plutonium, neptunium, and americium to convert at least part of the metal to the hexafluoride state, thus producing gaseous negatively charged metal-hexafluoride ions in the evacuated zone, and applying an electric field to the zone to remove the ions therefrom. The ion source comprises a chamber defining a reaction zone; means for evacuating the zone; an actinide-metal body in the zone, the metal being uranium, plutonium, neptunium, or americium; means for contacting the body with gaseous fluorine to convert at least a part thereof to the hexafluoride state; and means for applying an electric field to the evacuated zone to extract gaseous, negatively charged metal-hexafluoride ions therefrom. The invention provides unique advantages over conventional surface-ionization techniques for producing such ions.
REFERENCES:
patent: 3577026 (1971-05-01), Haeberli
patent: 4024217 (1977-05-01), Wexler et al.
Beauchamp, J. Chem. Phys., 64, No. 3, pp. 929-934, (1976).
Compton, J. Chem. Phys., 66, No. 10, pp. 4478-4485 (1977).
Goode et al., Negative Ions and the Magnetron, pp. 5-13, Wiley-Interscience (1969), New York.
Katy et al., "The Chemistry of Uranium," Division VIII, vol. 5, pp. 396-397, 445-446, McGraw-Hill Book Co., (1951), New York.
Compton Robert N.
Garrett William R.
Reinhardt Paul W.
Carlson Dean E.
Hamel Stephen D.
Lewis Fred O.
Miller Edward A.
The United States of America as represented by the United States
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