Experimental study of an ion source for electromagnetic isotope separation with a view to high efficiency operation

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Abstract

A conventional ion source with minor modifications was systematically investigated to determine the role of each of its parameters: cathode temperature, arc voltage, magnetic field, gas pressure, etc. The ultimate aim was the attainment of high efficiency operation, preserving an acceptable beam quality (line resolution). A practical method for the optimal adjustment of the various source parameters was developed. When correct operation principles were followed, the source was found capable of stable operation, yielding reproducible results at high efficiencies. Using a cathode of one mm diameter, efficiency values of 30%, 68% and 42% measured at the emission slit were obtained for argon, xenon and mercury respectively.

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Present address: Israel Atomic Energy Commission, Soreq Nuclear Research Centre, Nuclear Chemistry Department, Yavne, Israel.

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