Abstract
This article describes a simple ion emission regulator for a surface ionization ion source in the current range of 10-7-10-9A. The principle of regulation is quite similar to that of an electron emission regulation for an ionization vacuum gauge, except that the regulator has a simple electrometer circuit. The stability is about 1% after running of 1 hour, if a stabilized a. c. power supply is used. The regulator has been successfully employed in an ion beam experiment using hydrogen as a target gas.
