TY - JOUR AU - W. Morgan CY - Boulder, Colorado DA - 06/1991 M1 - 34 N1 - JILA Pub. 4565 PP - Boulder, Colorado PY - 1991 TI - A critical evaluation of low energy electron impact cross sections for plasma processing modeling: (I) Cl2, F2, and HCl; (II) CF4, SiH4, and CH4 ER -