TY - GEN AU - Dugan, John V. AU - Sovie, Ronald J. TI - NASA TN [D-4150]: Volume ion production costs in tenuous plasmas: a general atom theory and detailed results for helium, argon and cesium T2 - D-4150 PY - 1967/// CY - Washington PB - National Aeronautics and Space Administration KW - Aeronautics N1 - Technical Note D-4141-4150 Bound Vol. No.86777; Contents: TR-9007-9015 ER -