Method and apparatus for measuring vapor flow in isotope separat

Details Method and apparatus for measuring vapor flow in isotope separat Method and apparatus for measuring vapor flow in isotope separat

1975-01-06

1977-05-17

Smith, Alfred E.

Radiant energy

Ion generation

Field ionization type

250299, 250300, 219121EB, H01J 3934

Patent

active

040243990

ABSTRACT:
A probe for detecting the evaporation rate of an electron beam evaporation source and for monitoring induced ionization of the vapor. A negatively biased electrode responds to ions in the vapor to measure the ion current density. The ions measured may result from the process of vaporization or from laser produced isotopically selective ionization. The probe provides a current output which is detected as an indication of vaporization or laser ionization rate.

REFERENCES:
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patent: 3370171 (1968-02-01), Ohta
patent: 3390249 (1968-06-01), Hanks
patent: 3435208 (1969-03-01), Hansen et al.
patent: 3510647 (1970-05-01), Wood
patent: 3689766 (1972-09-01), Freeman
patent: 3772519 (1973-11-01), Levy et al.
patent: 3842267 (1974-10-01), Genequand
patent: 3857090 (1974-12-01), Chick

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