TY - RPRT TI - Geometrical optics without singularities: using the ray time as the coordinate space AU - Dodin, I. Y. [Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States)] (ORCID:0000000302436257) AU - Lopez, N. A. [Univ. of Oxford (United Kingdom)] AU - Xing, Tingjing [Princeton Univ., NJ (United States); Agency for Science, Technology and Research (A*STAR) (Singapore). Institute of High Performance Computing] AU - Marholt, Rune Højlund [Technical Univ. of Denmark, Lyngby (Denmark)] AU - Hall-Chen, Valerian H. [Agency for Science, Technology and Research (A*STAR) (Singapore). Institute of High Performance Computing; Agency for Science, Technology and Research (A*STAR) (Singapore). Future Energy Acceleration and Translation (FEAT)] PY - 2026 DO - 10.1017/s0022377826101299 UR - https://www.osti.gov/biblio/3366827 ID - 3366827 ER -