The study on the technology of the irradiation sterilization calcium lactive acid was carried out and the result showed that the suitable dosage is 5～6kGy.

Objective to study the dose of irradiation sterilization used in specific pathogen-free (SPF) animals and the quality of irradiated forage.

Using this technique as a rapid method to inspect irradiation sterilization effect, there was such an abnormal occurrence that ATP bioluminescence value of irradiated sample was higher than that of CK.

ISO11737-1 standard method was used to examine the initial contaminating bacteria before radiation sterilization and their recovery rates in order to setting dosage for radiation sterilization of medical products.

In order to explore the radiation dosage for sterilization of oral Huan-Er-Jin, a health-care product, its initial contaminating bacteria count and bacterial spectrum were examined, then the radioresistant bacterium was found out and the radiation sterilization dosage for this bacterial suspension was measured using the method of irradiation with escalating doses of 60Co radiation.

For the radiation sterilization,the content of vitamin C and the acti.

To simulate the shielding of mail irradiation system ,Monte Carlo method is used to investigate.