SE MUESTRAN LOS RESULTADOS DE TIEMPOS DE VIDA Y COMPORTAMIENTO SUPERFICIAL DE PELÍCULAS DE CARBÓN PREPARADAS POR IONES QUE ARRANCAN EL MATERIAL DESDE ALGUNAS SUPERFICIES. EL TIEMPO DE VIDA PROMEDIO DE LAS PELÍCULAS ES DE 57.6 MC (4.6 H), LO CUAL ES 15 VECES MAYOR QUE EL DE LAS PELÍCULAS COMERCIALES CONVENCIONALES. LAS PELÍCULAS SON TAMBIÉN DURABLES BAJO CONDICIONES DE CRECIMIENTO EN CONDICIONES NORMALES DE HORNEAR.AbstractRESULTS OF LIFETIMES AND SURFACE IRRADIATION BEHAVIOR OF THIN (- 5 -G/CM2) CARBON FOILS PREPARED BY A MIXED ION BEAM SPUTTERING METHOD ARE GIVEN. THE MEAN LIFETIME OF THE FOILS WAS 57.6 MC (4.6 H), WHICH WAS ABOUT 15 TIMES LONGER THAN THAT OF CONVENTIONAL COMMERCIAL FOILS UNDER 3.2 MEV, NE+ ION BEAM BOMBARDMENT. THE THIN FOIL WAS ALSO DURABLE UNDER CARBON BUILD-UP CONDITION WITH NORMAL NON-BAKABLE CHAMBER.RESULTS OF LIFETIMES AND SURFACE IRRADIATION BEHAVIOR OF THIN (- 5 -G/CM2) CARBON FOILS PREPARED BY A MIXED ION BEAM SPUTTERING METHOD ARE GIVEN. THE MEAN LIFETIME OF THE FOILS WAS 57.6 MC (4.6 H), WHICH WAS ABOUT 15 TIMES LONGER THAN THAT OF CONVENTIONAL COMMERCIAL FOILS UNDER 3.2 MEV, NE ION BEAM BOMBARDMENT. THE THIN FOIL WAS ALSO DURABLE UNDER CARBON BUILD-UP CONDITION WITH NORMAL NON-BAKABLE CHAMBER.