1 co 59 isotopes, <12., SA, L, the probability of the existence of microbial cells on the unit product after sterilization. For example L SA for the 10-6 means that only one product in 1 million products may be contaminated. The <<13.D-10 value of the total number of homologous microorganisms to kill 90% of the required dose of irradiation kGy<<14. no label: a paste type label. Half-life of about 5.27 years.
The number of the 2 half lives of a radioactive atom is reduced to a half of the initial value.
3 radioactive activity: a certain amount of radioactive radionuclides in a certain time interval divided by the time interval is called radioactivity. In the international system of units, the units of radioactivity Becquerel (BQ, symbol Bq1Bq equal to radionuclide within 1 seconds have a nuclear decay, 1Bq=1 decay of / seconds. Early activity units called Curie (Ci1Ci=3.71010Bq
4 absorbed dose: the amount of radiation energy transmitted to the mass of the material unit. Measuring unit of absorbed dose was Grai Gy) 1Grai is 1 kg, 1 joules of energy absorption material. Before the unit is used to measure the absorbed dose of Rad Ladd) named the "radiatabsorbdose1 Gy =100 Ladd.
5 non uniformity: the ratio of the maximum absorbed dose and the minimum absorbed dose of the same batch of products in the irradiated vessel, that is, the U=Dmax/Dmin also known as dose uniformity.
6. Dosimeter: the radiation can be repeated, the device or system response measurement can be used to measure a given material in the absorbed dose.
7 the probability of the existence of the microbial on the unit product after the sterilization of the L SA. For example L SA for the 10-6 means that only one product in 1 million products may be contaminated.
8.D-10 values of the total number of homologous microorganisms to kill 90% of the required radiation dose kGy
9 biological load: the total number of living organisms on a product.
10 initial microbiological indicators: to carry out sterilization (sterilization) prior to the microbial load of the product.
11 microbial limit specification: the specific quantitative specification provided by the relevant laws or regulations of the production process. Qualified products of microbial load, the shelf life, not higher than the microbial limit specification.
12 the probability of the existence of the microbial on the unit product after the sterilization of the L SA. For example L SA for the 10-6 means that only one product in 1 million products may be contaminated.
13.D-10 values of the total number of homologous microorganisms to kill 90% of the required radiation dose kGy
14 photo no label: a type of adhesive labels, receiving enough gamma rays will change color, so that the irradiated product and the non irradiated product area separate. According to whether the label is divided into two kinds of range (Ling Mindu) 410kGy after irradiation, the color from green to purple; the color from yellow to red after 10kGy irradiation.
