No abstract available

[en] Several types of Polish production films were investigated as dosimeters for electron beam irradiations. Quality of Polish and West Germany PVC-films was compared. (author)

[en] A number of simple dosimetric systems are described, which consist of paraffin, beeswax, chloroform, and phenol with an addition of an azo-dye acid base indicator, suitable for phantom dosimetry in a region of 0 to 5000 rad. The radiation-induced change in the colour of the indicator added helps in a visual selection of the phantom fragment which may be analyzed using a pH meter to determine the dose absorbed within an error of about 5%. (author)

[en] Organization rules of production process at the sterilization facility have been described. Proper manners for packing and storage of the sterilized products have been also presented. Dose requirements for different kinds of sterilized materials as well as methods of their control have been shown and discussed

No abstract available

No abstract available

[en] The radiation resistance polypropylene has been worked out in the Institute of Nuclear Chemistry and Technology, Warsaw. Its properties have been achieved by addition of special substance blocked the radicals arises during irradiation. The material has been attested by the Institute of Pharmaceuticals after a series of chemical, biological and physical investigations needed according to Polish regulations. 2 figs

[en] The method of manufacturing of radiation resistant polymer composition of medical quality have been proposed. The raw material consisted of polypropylene homopolymer with propylene-ethylene copolymer, ethylene-vinyl acetate copolymer and polystyrene suspension have been mixed and extruded during heating at 190-270^oC. Then obtained mixture have been granulated. The material structure with microagglomerates is responsible for elevated radiation resistance of material being destinated for medical devices production and radiosterilization

[en] Short communication

[en] A survey of work done in the field of radiation processing and high-dose dosimetry performed at the Institute of Nuclear Chemistry and Technology, Warsaw, is given in view of the worldwide trends that have taken place during the last 20 years. The status of radiation processing on linac LAE-13/9 at the Institute and an analysis of its technological capacity and operational problems are given. The metrological aspects of some commonly used dosimetric systems for routine and absolute uses are discussed. Some routine dosimetric systems are currently being tested and proposed for polymer and semiconductor radiation modification control. Attention is called to the statistical aspects of unexpected and very rare events connected with the unserviceability of the conveyor and scanning system which involved overdosing during irradiations. Some results of semiconductor irradiation illustrate the level of precision of radiation processing with reference to the reproducibility of electrical parameters depending on the level of industrial semiconductor technology. (author)