TY - JOUR A1 - Mallina, R V A1 - Wexler, A S A1 - Johnston, T1 - High-speed particle beam generation: simple focusing mechanisms. Y1 - 1999// N1 - R823980 N1 - R826234 JF - JOURNAL OF AEROSOL SCIENCE J1 - J AEROSOL SCI J2 - J.Aerosol Sci. PB - Elsevier Science ER - TY - JOUR A1 - Mallina, R V A1 - Wexler, A S A1 - Rhoads, K P A1 - Johnston, M V T1 - High speed particle beam generation: a dynamic focusing mechanism for selecting ultrafine particles. Y1 - 2000// N1 - R826234 JF - AEROSOL SCIENCE AND TECHNOLOGY J1 - AEROSOL SCI TECH J2 - Aerosol Sci.Technol. J3 - Aerosol Sci Technol VL - 33 IS - 1-2 SP - 87 EP - 104 ER -