TY - RPRT TI - Free-free matrix-elements for two-photon opacity AU - More, R. M. AU - Pain, J.-C. AU - Hansen, Stephanie B. AU - Nagayama, Taisuke AU - Bailey, James E. PY - 2019 DO - 10.1016/j.hedp.2019.100717 UR - https://www.osti.gov/biblio/1772045 ID - 1772045 ER -