TY - RPRT TI - Chromatic matching in a plasma undulator AU - Djordjević, B. Z. AU - Benedetti, C. AU - Schroeder, C. B. AU - Esarey, E. PY - 2019 DO - 10.1063/1.5120868 UR - https://www.osti.gov/biblio/1818113 ID - 1818113 ER -