Voznyi, V. I., A. G. Ponomarev, D. V. Mahilin, D. P. Shulha, and V. A. Rebrov. “Emittance of a Low-Power RF Ion Source With a Micrometer-Scale Extraction Aperture”. East European Journal of Physics, no. 4, Dec. 2025, pp. 537-41, doi:10.26565/2312-4334-2025-4-55.