High temperature ion source for an on-line isotope separator

Details High temperature ion source for an on-line isotope separator High temperature ion source for an on-line isotope separator

1978-05-10

1979-06-05

Dixon, Harold A.

Radiant energy

Ion generation

Field ionization type

250427, H01J 2700

Patent

active

041574710

ABSTRACT:
A reduced size ion source for on-line use with a cyclotron heavy-ion beam is provided. A sixfold reduction in source volume while operating with similar input power levels results in a 2000.degree. C. operating temperature. A combined target/window normally provides the reaction products for ionization while isolating the ion source plasma from the cyclotron beam line vacuum. A graphite felt catcher stops the recoiling reaction products and releases them into the plasma through diffusion and evaporation. Other target arrangements are also possible. A twenty-four hour lifetime of unattended operation is achieved, and a wider range of elements can be studied than was heretofore possible.

REFERENCES:
patent: 2978580 (1961-04-01), Von Ardenne
patent: 3392280 (1968-07-01), Friedman et al.

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