Variable energy, high flux, ground-state atomic oxygen source

Details Variable energy, high flux, ground-state atomic oxygen source Variable energy, high flux, ground-state atomic oxygen source

1986-04-10

1987-03-10

Walsh, Donald P.

Radiant energy

Electrically neutral molecular or atomic beam devices and...

250396R, 250423P, 376127, H01S 100

Patent

active

046492739

ABSTRACT:
A variable energy, high flux atomic oxygen source (10) comprising means (48) for producing a high density beam of molecules which will emit O.sup.- ions when bombarded with electrons; means (44) for producing a high current stream of electrons at a low energy level passing through the high density beam of molecules to produce a combined stream (54) of electrons and O.sup.- ions; means (32) for accelerating the combined stream to a desired energy level; means (12) for producing an intense magnetic field to confine the electrons and O.sup.- ions; means (56, 58) for directing a multiple pass laser beam (62) through the combined stream to strip off the excess electrons from a plurality of the O.sup.- ions to produce ground-state O atoms within the combined stream; electrostatic deflection means (68, 70) for deflecting the path of the O.sup.- ions and the electrons in the combined stream; and, means (78) for stopping the O.sup.- ions and the electrons and for allowing only the ground-state O atoms to continue as the source of the atoms of interest. The method and apparatus are also adaptable for producing other ground-state atoms and/or molecules.

REFERENCES:
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patent: 3669897 (1972-07-01), Hansen et al.
patent: 3713967 (1973-01-01), Hamilton et al.
patent: 3742219 (1973-06-01), Damm et al.
patent: 4070580 (1978-01-01), Gallagher
patent: 4085332 (1978-04-01), Fletcher
patent: 4140576 (1979-02-01), Fink et al.
patent: 4140577 (1979-02-01), Fink et al.
patent: 4158775 (1979-06-01), Frosch
patent: 4600840 (1986-07-01), Chutjian

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