Determination of the level of natural background radiation in the surface soil of Kufa farms, IraqSarab J. Musa, Noor Ali Sami, Gufran Hade Seood, Esraa Salim Obayes and Hanan Naji MohsionE3S Web Conf., 633 (2025) 02004DOI: https://doi.org/10.1051/e3sconf/202563302004