Wilhelm Conrad Rontgen ( 1845-ngien   3-ngie?t 27-ngit  –  1923-ngien   2-ngie?t 10-ngit ) he Tet-koet ke yit-chak vu?t-li-ho?k -ka.

1895-ngien 11-ngie?t 8-ngit, chhai Tet-koet Wurzburg Thai-ho?k chin-hang yim-khi?t sa-sien ke s??t-ngiam s??, kon-chhat to piong-chhai sa-sien-kon fu-khiun thu-yu Chhiang-a-pha?k son-pi ke phin-song fat-chhut ke mi-kong, chui-heu ki khok-sin lia he yit-chung sin sa-sien. Yu-ngin thi-ngi chiong ki fat-hien ke sin sa-sien thin-miang vi "Rontgen Sa-sien", Rontgen Sa-sien chh?? -yung " X Sa-sien " lia yit miang-chh??n, san sang X Sa-sien ke ki-hi ham-cho X Sa-sien-ki. 1901-ngien, su-kai Nobel Chiong pan-fat, Rontgen tet-to Nobel Vu?t-li-ho?k Chiong .