USING NUCLEAR TECHNOLOGY HAVE MANY EFFECTS IN DECREASING POSTHARVEST DAMAGING. ONE OF THE IMPORTANT OF PHYSICAL TREATMENTS POSTHARVEST DAMAGING CONTROL IS ionization LIKE ELECTRON, ALFA AND BETA RAY, X RAY AND GAMMA RAY. APPLICATION GAMMA RAY IS CAUSED: INCREASING KEEPING PERIOD PRODUCTION LIKE STRAWBERRY, DECREASING RIPENING IN FRUIT, PreVENTION SPROUTING BULBS AND TUBERS, DECREASING MICROBIAL INFECTION (FOODS WHICH USE FRESH) AND DECREASING (MICROBIAL INFECTION IS MORE IMPORTANT FOR HUMAN WHO HAS WEAK DEFENSIVES SYSTEM), VIRUS DESTROYED, DEFENDING STORAGE PESTS IN FRUIT LIKE MANGO AND PAPAYA. DURING USE THE ionization MUST PAY ATTENTION TO: BE ECONOMIC IN RELATION TO OTHER TREATMENT, BE ASSURED AND HEALTHY AND HOST SHOULD BE MORE RESISTANCE THAN MICROORGANISM.