[en] Compact radio-frequency (RF) driven ion sources are being developed in the Lawrence Berkeley National Laboratory (LBNL) for sealed-accelerator-tube neutron generator applications. This portable generator is projected to produce a neutron flux in the range of 10⁹ to 10¹⁰ D-T neutrons per second. A 2 MHz RF-driven ion source designed for a 5-cm-diameter neutron tube has been developed. Typical operating parameters include repetition rates up to 100 pps, with pulse widths between 10 and 80 μs and source operating pressure as low as 4 m Torr. By using a computer designed 100 keV accelerator column, peak extractable hydrogen current exceeding 1 A has been from a 3-mm-diameter aperture, together with H⁺ yields over 94% have been achieved. An RF impedance matching network has also been successfully miniaturized to ∼5 cm diameter and tested. For low duty factor operations, the ion source and matching circuit do not require any cooling. (author)